Kreg K3 - Selecting the Correct Screw; Jig Setting and Screw Length

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17
Selecting the Correct Screw for Your Application
Selecting the correct screw for your application is a function of three variables.
1. Jig setting - Set jig to the same setting as your wood thickness (ie. 3/4”
setting for 3/4” thick wood.
2. Drill bit depth collar setting - Set your drill bit to the standard setting
using the base of the jig or the chart at the bottom of page 18.
3. Screw length - Use the chart below to select the correct screw length.
The chart below helps to select the correct screw type when joining like thicknesses of
wood (ie. 3/4” to 3/4” material) in both a frame and right angle application. This chart
assumes that you are using the setting of the jig that corresponds to the material
thickness you are drilling, and that you are using the standard drill bit depth collar
settings posted at the bottom right of page 18. These are simply standard guidelines
for screw penetration... we always recommend that you test your desired joint in scrap
material before drilling and assembling final pocket holes.
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Joining 5/8” to 5/8” material
1” or 1-1/4” recommended screw length
Joining 3/4” to 3/4” material
1-1/4” recommended screw length
Joining 7/8” to 7/8” material
1-1/2” recommended screw length
Joining 1/2” to 1/2” material
1” recommended screw length
5/8” Material
5/8” Material
7/8” Material
7/8” Material
3/4” Material
3/4” Material
Selecting the Correct Screw
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1/2” Material
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We do not recommend
frame joinery of
1/2” to 1/2” material.