Catalog # 79-373
2-1/8 in. BI-Metal Hole Saw
INCLUDED IN THIS KIT:
1 in. BI-Metal Hole Saw
3/8 in. or larger
WARNING: Failure to read and follow all instructions
listed below may result in serious injury or property
• Read and follow all instructions in drill manual and on hand tools.
• Always use proper eye, respiratory and hearing protection.
• Hole saws for use on wood or metal doors.
• DO NOT use wood chisel on metal doors.
Steps to Install Door Lock Kit:
• Locate and tighten guide on door.
1. CLAMP DOOR LOCK GUIDE
• Determine location of door lock by measuring up from bottom of
door and making a mark on the latch bore side of door.
*Exact measurement depends on door lock, consult door lock
• Hold guide with black latch face up, closest to you. Using 2
hands, pull open guide. Slide the black latch from right to left until
it clicks. Line up the black cylinder on the latch bore side of door
so your mark is in the middle. Be
sure the black cylinder is flush
against the door. Using 2 hands,
clamp the guide securely on the
door. NOTE: Clamping the guide
will automatically center the latch
2. DRILL FACE AND LATCH BORE HOLES
• The guide provides the ability to drill your face bore hole at 2
different backsets (of 2-3/8 in. (60mm) and 2-3/4 in. (70mm)). The
guide is set at 2-3/8 in. (60mm).
*If this is not your preference, pull out the inserts and rotate them
90 degrees and re-insert.
• Assemble the 2-1/8 in. hole saw by screwing the mandrel into the
• Drill the face bore hole using
the guide as a reference.
Continue drilling until the mandrel
has drilled through to the other
side of the door (do not push the
hole saw through to the other
side, it could splinter the door).
• Drill hole on other side using the pilot hole as a starting point.
• Disassemble 2-1/8 in. hole saw and assemble 1 in. hole saw.
• Drill hole with 1 in. hole saw
through latch bore guide hole.
Drill hole completely through to face
• Remove guide from door by sliding
black latch to the right and pulling
• Align latch face plate on door edge
and draw outline.
• Chisel out area until face plate sits
flush and drill 3/32 in. (2mm)
diameter pilot holes for screws.
Repeat for strike plate.
3. DOOR HINGE INSTALLATION
If you are replacing a door and the hinge recesses exist on the
LOCATING THE DESIRED DOOR HINGE LOCATIONS
door jam, there are 2 methods of determining where to cut the
recesses out on the door.
• Method #1 - Measure the hinge locations of the previously used
door from the top of the door down (do not measure from the bot-
tom up since this may create a large gap at the top of the door).
• Method #2 - Measure the distance from the top of the door jam
down to the first hinge and subtract 1/8 in. This will create a 1/8 in.
clearance gap at the top of the door.
If the door jam that you are installing the door into does not have
hinges or hinge recesses, mark the center of the hinge locations
on the edge of the door. This centering mark will be used in step 2
to locate the Hinge Template.
• Determine which way the door will open and how the hinges will
MAKING DOOR HINGE RECESS
need to be positioned for proper operation. Locate the Hinge
Template on the edge of the door such that the hole lines up with
the mark scribed in step one (the center of the hinge).
Installation tip: With a pencil, outline the inside of the Hinge
Template, this is the area that will be chiseled out. Remove the
template and position the hinge inside the pencil lines to verify the
door will open as desired.
• With the Hinge Template in
place, insert a screw into the
hole, and fasten the template
onto the door. With the template
fastened to the door, use a chisel
to remove the material inside the
template as shown. Remove the
template and chisel out material
left behind at the template screw
location. Screw the hinges onto
• Follow instructions provided with door lock for lock set installation.
4. INSTALL DOOR LOCK