This Kit Includes The Same Easy Set Stop Collar And Material Thickness Gauge/Hex Wrench That Come With Kreg&Reg; 300 Series Pocket Hole Jigs. The Collar Features A Window That Aligns With The Engraved Markings On The Kreg Easy Set Pocket Hole Drill Bit To Make Setting The Bit At The Correct Depth Easy For 1/2', 3/4', And 1 1/2' Materials.
The Material Thickness Gauge Allows You To Easily Determine Material Thickness (1/2', 3/4', 1 1/2'), And Has A Built In Hex Wrench For Tightening The Stop Collar. Collar Also Fits All Other Standard (3/8' Diameter) Kreg Pocket Hole Drill Bits.