Kreg K3 Instructional Manual page 19

Joining 1" to 1" material
1-1/2" recommended screw length
Joining 1-1/4" to 1-1/4" material
2" recommended screw length
Joining 1-1/2" to 1-1/2" material
2-1/2" recommended screw length
Selecting the Correct Screw
Standard Depth Collar Settings
To get the amount of screw penetration shown
in the charts, use the standard depth collar set-
tings below as measured from the shoulder of
the drill bit to the depth collar. These distances
can also be referenced on the base of both the
Benchtop and Portable Base.
Joining 1-1/8" to 1-1/8" material
1-1/2" recommended screw length
Joining 1-3/8" to 1-3/8" material
2" recommended screw length
Depth collar distance from
Jig Setting shoulder of drill bit
1/2"
5/8"
3/4"
7/8"
1"
1-1/8"
1-1/4"
1-3/8"
1-1/2"
18
3-1/4"
3-7/16"
3-9/16"
3-11/16"
3-7/8"
4-3/16"
4-1/8"
4-5/16"
4-1/8"