Major Manufacturing's HIT-66 System


Major Manufacturing’s HIT-66 System is one of the most ubiquitous installation tools in the locksmith industry. It allows locksmiths to perform professional installations of the most popular cylindrical and mortise locks with amazing efficiency.

HIT-66 Clamp System

HIT-66 Clamp System

The basis of the HIT-66 is it’s clamp system. All other tools in the HIT-66 family attach to these rubber-lined clamps. The clamps fit doors ranging from 1-1/4” to 2-7/8” and are machined from aluminum.




The HIT-66-100 is, for all intents and purposes, an installation template for any lock requiring a 160 or 161 prep. It can perform fresh installations or enlarge existing crossbores. It works on wood and steel doors and can accommodate 2-3/8″ and 2-3/4″ backsets. It features 5/16″ holes for through-bolts at the 6 and 12 o’clock positions. The latchbore can be drilled with either an auger, brad-point, multi-point, or hole saws with the supplied adapters.




The HIT-66-200 is an attachment that mortises pockets for mortise locks. It directly attaches to the HIT-66 clamp system and can be used in conjunction with nearly all other HIT-66 templates at the same time. This allows you to perform a fresh installation of almost all popular mortise locks currently on the market. It comes with a 1″ carbide-tip mortising bit along with stop collars.

HIT-66 Templates

Mortise lock templates are the shining stars of the HIT-66 system. These templates allow you to accurately and quickly drill cylinder, thumbturn, trim, and all other auxiliary holes for the most popular mortise locks. The following templates are available from Major to work with the HIT-66:

  • HIT-66-210 (Alarm Lock DL3500)
  • HIT-66-230 (Best 34H/37H/45H/47H)
  • HIT-66-235 (Corbin Russwin ML2000/ML2200)
  • HIT-66-240 (Falcon MA)
  • HIT-66-248 (Hager 3800)
  • HIT-66-250 (Kaba E-Plex/5000)
  • HIT-66-251 (Kaba 660/760/770/790)
  • HIT-66-255 (Marks 5/DORMA M9000)
  • HIT-66-263 (Onity CT)
  • HIT-66-264 (Onity HT)
  • HIT-66-266 (Saflok MT)
  • HIT-66-268 (Salto XS-4)
  • HIT-66-272 (Sargent 7800/7900/8200/9200)
  • HIT-66-280 (Schlage AD)
  • HIT-66-281 (Schlage CO)
  • HIT-66-282 (Schlage L)

Using the HIT-66

The HIT-66 is one of the easiest installation tools to use. In this example, I’m going to show you how it works by using the HIT-66-282 template for Schlage L Series mortise locks.
This door has a Schlage L9070 (Classroom function) mortise lock. It needs to be converted to a L9050 (Office/Inner Entry function). This means that the hole for the thumbturn hole needs to be drilled.

Schlage L9070

Schlage L9070

To start, the existing lock must be removed.
Mortise Pocket

Mortise Pocket

Once the lock is removed, we can begin attaching the HIT-66 and template. We start first by attaching the positioning plate. This helps orient the rest of the HIT-66 tool.
Positioning Plate

Positioning Plate

With the positioning plate install, we can now mount the rest of the HIT-66. The HIT-66 slides over the post of the positioning tool and is then pressed against the edge of the door. The clamps can then be tightened.
HIT-66 Mounted

HIT-66 Mounted

With the HIT-66 mounted, we can now drill. Since we only have to drill for the thumbturn, we identify that hole and drill.
Drilling For Thumbturn

Drilling For Thumbturn

With the hole drilled, the thumbturn can be installed.
Thumbturn Installed

Thumbturn Installed

It’s that simple and that quick. Professional quality results in seconds. Cylinder holes can be drilled as quickly and professionally as well.
L9080 Cylinder Hole

L9080 Cylinder Hole

L9080 Cylinder Hole

L9080 Cylinder Hole

By |2020-04-06T09:00:40+00:00April 6th, 2020|All, Cylindrical and Tubular, Mortise|0 Comments

What's the Right Way to Mount Schlage Mortise Lock Thumbturns?


Very few things in locksmithing seem as inconsequential as mounting a thumbturn for a mortise lock. In truth, there should be a rhyme and reason to this and I inadvertently discovered that this week, but more on that in a bit. As a reminder, Schlage installation instructions don’t indicate a right or wrong method of installation for thumbturns. Product literature doesn’t give us any additional clues either.

Standard Thumbturn in L9000 Catalog.


Standard thumbturn architectural drawing.

So, why should any of this matter? If you have been a locksmith for even a short amount of time you are no doubt aware that screws can loosen over time. Due to the very small clearance between the turn portion and the rest of thumbturn, it’s conceivable that a loose screw could either prevent full rotation of the thumbturn or bind it in place. If that were to occur while the door was locked you are looking at a very, very difficult lockout.

Clearance between turn portion and the rest of the thumbturn.

I know it would be a very, very difficult lockout because that is exactly what I encountered this week. The key would turn but the bolt would not retract. My initial thoughts, beyond the obvious, were that something must be wrong within the lock case. Only after I made entry did I realize what was going on. Lesson learned. Going forward, I will make sure to mount thumbturns so that the turn portion doesn’t pass over the mounting screws.


Fortunately, I had a job later in the week to convert an L9010 (Passage – F01) to an L9453 (Entrance w/ deadbolt – F20). I would need to drill for the cylinder’s hole as well as for the new thumbturn’s spindle. Since this thumbturn only rotates 90 degrees to throw and retract the bolt, keeping the mounting screws out of it’s path of rotation wasn’t too hard to pull off.

Bolt thrown.

Bolt retracted.


Outside trim unlocked.


Again, this seems like a very inconsequential task in the grand scheme of things but it could potentially prevent a lockout like the one I encountered. Whether most other installers have caught on to this, I don’t know. Hopefully this article will at least catch some eyes and convince others to start taking similar approaches when mounting thumbturns for Schlage’s L9000 Series mortise locks.

By |2019-06-19T09:00:44+00:00June 19th, 2019|All, Mortise|0 Comments

WLS: Storefront Door Exit Indicator Installation Methods

This article is courtesy of Wayne Winton of For more “How-To” pictures and videos, including the largest collection of online locksmith training videos, please visit


Today we are installing a storefront door exit indicator. Exit indicators allow building occupants an unmistakable notification of the lock’s status: either locked or open/unlocked. When an exit indicator is used in conjunction with appropriate signage, such as a sticker that reads “THIS DOOR TO REMAIN UNLOCKED DURING BUSINESS HOURS”, building/life safety codes can allow deadlocks/bolts to be used in lieu of exit devices. This ability is especially important to storefront businesses who desire the extra security that a deadlock/bolt offers. In some cases, the AHJ may also allow cylinders on both sides of the door to be utilized as long as an exit indicator is in use.
Multiple manufacturers offer exit indicators that work in conjunction with storefront door mortise locks. Perhaps the most popular exit indicator is Adams Rite’s 4089. The 4089 exit indicator is compatible with Adams Rite’s MS1837, MS1850S, MS1850S-050, SCH1850S, MS1850SN, MS1850SN-050, SCH1850SN, MS+1890, MS1950, MS1950-050 series deadlocks as well as their 1870, 1870HM, 1877 series cylinder-operated flushbolts.


Like most jobs, there is more than one way to do something and installing a new exit indicator is no different.
The first way is with a jig and router. In the video below, I am using the HIT-45AR2 template with the HIT-45 modular clamp. It allows for a quick, professional, factory-like installation in the field. Also in the video is a second way: “freehanding” with a step-bit and a drill. Take a moment to check out both methods in action as well as a few additional tips.


For a closer look, here are some job site photos from other installations:

By |2019-03-07T09:00:56+00:00March 7th, 2019|All, Mortise, Wayne's Lock Shop|1 Comment

Mortise Lock Library Update

We have updated our Mortise Lock Library page to match our new Library format.

List of Manufacturers

We now have 44 manufacturers listed with a link for each that points to their respective mortise lock page, when available, under the “List of Manufacturers” tab.


Under the “Resources” tab we have links to onsite literature, such as an ANSI/BHMA function reference chart, our Exploded Views – Mortise Lock Tool. We also have links to a Jake Jakubiwski book review and an article on servicing Best’s 45H/47H mortise locks. Also under the “Resources” tab are links to over a dozen YouTube videos covering mortise locks.

Manufacturer’s Literature and Manuals

Under the “Manufacturer’s Literature and Manuals” tab we currently have over 60 files representing 16 manufacturers.

By |2018-12-10T09:00:29+00:00December 10th, 2018|All, Library Update, Mortise|0 Comments

Introductory Locksmithing: Lock Functions


Locks come in a variety of shapes, sizes, finishes, backsets, etc. These features were implemented to fill needs. Lock functions too were designed to fill needs. Situations exist where a door should always be locked, when it should never be locked, or when it should do X or Y. Locks with a variety of functions were and are therefore necessary to meet the needs of these situations. 

function n. a set of operating features for a particular type of lock or exit device which make it suitable for a specific application. The function is designated by a classification name or standards reference number. See ANSI or BHMA for a specific listing.


ANSI/BHMA standards both define and assign names and numbers (known primarily as function numbers but also as ANSI numbers or function codes) to functions. The use of function descriptions, names, and numbers is commonly associated with 2 lock types:  

  1. ANSI/BHMA A156.2 (Bored & Preassembled Locks and Latches) covers bored locks, such as cylindrical knobsets and leversets.  
  1. ANSI/BHMA A156.13 (Standard for Mortise Locks and Latches) covers mortise locks.  

While technically bored locks, interconnected locks and their functions are defined in their own standard, ANSI/BHMA A156.12 (Interconnected Locks & Latches); I will use the “cylindrical” nomenclature for the remainder of this article to avoid any confusion. 
Other lock types, such as deadbolts and even cylinders, have functions defined and assigned names and numbers by ANSI/BHMA standards. Mortise locks and cylindrical locksets will be the focus of this article since they carry many more functions than the aforementioned lock types. 


Standardizing functions helps bring uniformity to our industry. All manufacturers include function names and numbers in their catalogs. If you were searching for a specific function across multiple product lines, seeing this function name and number would tell you how the lock operates regardless of the manufacturer or their product number. For example, a Schlage L9010 and a Sargent 8215 are passage function (F01) mortise locks. Here is a side by side comparison of their catalog entries, each with their function number listed: 

Sargent and Schlage F01 comparison.

Sargent and Schlage F01 comparison.

Unique Functions

There are multiple functions that manufacturers offer that ANSI/BHMA standards don’t define or quantify. This is especially true for mortise locks which can incorporate more features, such as a deadbolt, than cylindrical knob and leversets. For example, Schlage’s L Series mortise locks has 57 functions – less than half have a corresponding ANSI/BHMA function name or number. Fortunately, all manufacturers include drawings as well as thorough descriptions for functions that ANSI/BHMA standards don’t cover. This eliminates any guess work.  
A clear majority of the locks that we sell or service have a function name and number. With a bit of familiarity and practice, their identification will be as second nature as identifying a tool in your tool box. In this article, we’re going to discuss the most common functions, their features, and where they are generally found to help build this familiarity. I’ve included descriptions, names, and numbers from Schlage’s L (mortise) and ND (cylindrical) series locks to help illustrate each function discussed. 

Function Terminology

Before we do that, let’s take a moment to cover some terminology. When describing a lock, we need to differentiate between each side of the door. Avoid using terms like secured side. This causes confusion over interpretation. Use the terms “outside” and “inside” instead. Outside refers to the side of the door which houses the cylinder; manufacturers will sometime refer to this as the “cylinder side” of the door. Inside nearly always refers to the side of the door without a cylinder. There are functions with cylinders on both sides of the door but the manufacturer will adequately describe these functions. This is the terminology used by manufacturers and it would serve you well to not only understand it but also practice it.  

Popular Functions

Popular Schlage ND Series (Grade 1, Cylindrical Leverset) Functions

Passage (F01 for mortise, F75 for cylindrical) 

Schlage L Series (Mortise Lock) Passage Function (F01).

Schlage L Series (Mortise Lock) Passage Function (F01).

The good thing about functions is that their name gives us clues to their use or operation. Passage function locks are a good example of this. They allow passage no matter which side of the door you are on. No key is required and passage locks cannot be locked. 
Passage function locks are ideal where doors are either required, such as by code, or desired to latch but not lock. Examples of their usage include common areas and on stairwell doors. They are also commonly used in conjunction with deadbolts where allowed. 

Privacy (F02, F19, or F22 for mortise, F76 for cylindrical) 

Schlage L Series (Mortise Lock) Bath/Bedroom Privacy Function (F22).

Schlage L Series (Mortise Lock) Bath/Bedroom Privacy Function (F22).

Privacy function locks allow an occupant inside of a room to lock the door from the inside via a thumbturn or push button. Turning the inside trim retracts the latch and/or deadbolt. Furthermore, there is an emergency override on the outside that a user can operate with a coin, standard screwdriver, or similar object that allows them to open the door in the event of an emergency. For mortise locks, F22 utilizes a latchbolt, no deadbolt. F02 and F19 incorporate a deadbolt. On F19 function mortise locks, the latch cannot be retracted by the outside trim when the deadbolt is thrown, on F02 function mortise locks it can (the latch and deadbolt operate independently). Privacy function locks are common on restroom doors as well as interior residential doors.  

Office/Entrance (F04 for mortise, F82 for cylindrical) 

Schlage L Series (Mortise Lock) Office/Inner Entry Function (F04).

Schlage L Series (Mortise Lock) Office/Inner Entry Function (F04).

Office/Entrance function mortise locks allow the room’s occupant to lock a door by utilizing a key and either a thumbturn or a toggle switch. Some manufacturers offer both types. For locks utilizing a toggle switch,you can only lock the door using the toggle switch. The door remains locked when turning the inside trim and using a key only retracts the latch. The toggle switch must be returned to the unlocked position to unlock the outside trim. For locks utilizing a thumbturn, the door can be locked using a key or the thumbturn. The door remains locked when turning the inside trim. The door can be unlocked by the key or by returning the thumbturn to the unlocked position.   
For cylindrical locks, F109 (Entrance Function) is very similar to F82. In fact, most people refer to them both as entrance function locks. The difference is that F109 function cylindrical locks utilize a turn-and-push button on the inside. Pushing the button will lock the door until you turn the inside trim or use the outside key to unlock it. Pushing and turning the button will lock the door indefinitely; the button must be turned back to the “push” position for it to be unlocked the next time the inside trim is turned or the key is used. Office/Entrance function locks are very popular on residences and individual commercial offices and closets. 

Storeroom (F07 for mortise, F86 for cylindrical) 

Schlage L Series (Mortise Lock) Storeroom Function (F07).

Schlage L Series (Mortise Lock) Storeroom Function (F07).

Storeroom function locks always remained locked from the outside and unlocked from the inside. You can use a key to retract the latch but that will not unlock the lock. A storeroom function lock prevents someone from inadvertently leaving the door unlocked. Storeroom function locks are popular on rooms containing sensitive information, such as server rooms, or items, such as storage rooms. Storeroom function locks are also popular with doors utilizing electric strikes. This prevents someone from unlocking the lock, relying instead on the electric strike, while still allowing for a mechanical override if necessary. 
Most manufacturers now offer storeroom function cylindrical leversets with “clutched” levers. Standard storeroom function cylindrical leversets have rigid outside levers whereas clutched levers are not; they allow movement of the outside lever without retracting the latch. This protects against destructive entry attempts to open a cylindrical leverset by forcing the outside lever trim. 

Classroom (F05 for mortise, F84 for cylindrical)

Schlage L Series (Mortise Lock) Classroom Function (F05).

Schlage L Series (Mortise Lock) Classroom Function (F05).

Classroom locks are very popular on, you guessed it, classrooms. The function allows only key holders, such as teachers or other school staff, to lock and unlock the outside trim of the lock. You don’t want to give students or other individuals the ability to lock the teacher out, after all! 
It’s important to note that new hardware products and lock functions are being developed by manufacturers to help protect classrooms in the event of an active shooter or similar threat. Furthermore, life safety codes related to this specific situation are actively being debated, researched, and, in some cases, revised in response. The usage of the term “classroom” is highly popular with these new functions. I cannot stress how important it is to verify the function of these locks as well as their legality in your jurisdiction before choosing to service or install them.  

Other Functions 

Passage, privacy, storeroom, entrance, and classroom functions are by far the most popular and utilized lock functions currently. You can satisfy a large majority of customer’s requests with these functions alone. There are, however, dozens more functions available. It would serve you well to familiarize yourself with different manufacturers’ offerings by reviewing their catalogs. These also serve as excellent research tools if a customer requests a lock function that you aren’t immediately familiar with.  

Universal Function Mortise Locks

Best 45H “Universal Function” Mortise Lock. Screw positions (labeled 1-5) allow the lock’s function to be changed in the field.

BEST, Sargent, and Schlage offer multi-function/universal mortise locks. These mortise lock bodies are capable of multiple, different functions with a single lock body. Changes to the lock body, such as screws in BEST’s case as seen above, result in changes to the function. Changing of these functions can potentially require you to add, remove, or swap existing trim and/or components. For example, transforming a passage function mortise lock to a storeroom function mortise lock requires a mortise cylinder. It’s important to understand these changes when quoting to change the function of mortise locks so that you and your customer don’t incur additional costs during the job and/or potentially leave unfilled holes in the door. 

Library Update: ANSI/BHMA Lock Function Reference Chart

We’ve just added a reference chart (direct link here) to the Library which contains function numbers, common names, and descriptions of the most popular ANSI/BHMA mortise, bored (cylindrical), interconnected, deadbolt, deadlatch, and deadlock functions. It’s laid out in a way that we think is streamlined for locksmiths who may have not fully committed these functions to memory.
If, for example, you wanted to decipher the function of a lock in hand OR you wanted to specify a function number based on the characteristics of the lock, you can quickly narrow it down by utilizing this sheet. This, we believe, is far more advantageous than the current method of reading multiple function descriptions via manufacturer’s literature.
The derived information should be compared to the manufacturer’s literature as final confirmation prior to ordering their specific lock.

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