1-3/8
15/16
1-7/8
ACTIVE MORTISE LOCK
HOLE PREPARATION
(LEFT HAND)*
ø 1/2
ESCUTCHEON HOLE
THRU HOLE
1
ø 1-1/4
CYLINDER HOLE
OUTSIDE ONLY
2
1-1/8
1-1/4
C
L
DOOR
7/8
7/8
4-7/8
2-15/16
11/16
1 1/4
3/16" DEEP
FOR STRIKE &
UNDERSTRIKE PLATES
DOOR JAMB PREP
1" DEPTH
* NOTE: 8-1/2 X 11 COPY OF
THIS TEMPLATE NOT TO SCALE.
THIS TEMPLATE IS DESIGNED
FOR 1-3/4 THICK DOOR.
ALL DIMENSIONS ARE IN INCHES.
3-3/8
Ø 3/4
THUMB TURN HOLE
INSIDE ONLY
3
C
L
LOCK
ø1
LEVER SPINDLE
HOLE INSIDE ONLY
ø1
THUMBPIECE HOLE
OUTSIDE ONLY
ø 1/2
THRU HOLE
FOR TOP OF PULL
2-1/2 BACKSET
2-3/4 BACKSET
8
3-1/2
MORTISE
6-3/8
FOR
LOCK
1-3/16
3/4
1-1/2
4
1-1/4
5
1-1/4
6
1/4 DEEP
FOR BOX
PLATE
MORTISE BOX DEPTH:
4 DEEP FOR 2-3/4 BACKSET,
3-3/4 DEEP FOR 2-1/2 BACKSET
(FROM FACE OF DOOR)
6-1/4
1/2 X 5/32
3/4 DEEP (X2)
RELIEF POCKETS
(FROM FACE OF DOOR)
** IMPORTANT:
ONLY DRILL ONE 3/8 HOLE FOR
A SPECIFIC MODEL OF LOCK.
ø 3/8 THRU **
FOR PULL
MODEL "A"
ø 3/8 THRU **
FOR PULL
MODEL "B"
ø 3/8 THRU **
FOR PULL
MODEL "C"
MODEL "D"
ø 3/8 THRU **
FOR PULL
8
8-3/4
9-1/8
EDGE OF DOOR
C
DOOR
L
IN4-MORTISE-L REV 10/28/2013
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