Pre-drill and countersink to drive screws flush with the material surface or deep hole counter boring for driving screw heads below the surface. Ultra-sharp cutting flute clears chips efficiently and leaves a clean, smooth hole. Adjustable drill bit length for desired screwed depth, and features a flattened shank for a no-slip countersink connection.

Precision made for drilling accuracy and high-torque driving applications. Get jobs done easier, faster and with professional results.

• Sizes: #6, #8, #10, #12
• A great companion set to the Montana Brand Self-Centering Plug Cutters.
• Power groove 1/4" hex shank is quick change and impact drill/driver compatible
• Allen wrench for drill bit depth adjustments and replacement
• For use in wood and plastic
• Made in the USA