Use Snappy SD-3 Flat Bottom Counterbores to drill a pilot/clearance hole and counterbore a flat bottomed hole in one step. The unique geometry of the cutters provide excellent chip clearance and cutting performance, even in hardwoods. Perfect for creating jigs using 1/4-20 bolts, 1/4″ washers & WoodRiver 1/4-20 Knobs. Features: Use to drill a pilot/clearance hole and counterbore a flat bottomed hole in one step Perfect for creating jigs using 1/4-20 bolts, 1/4″ washers & WoodRiver 1/4-20 Knobs 3-flute flat bottom counterbore with TiN coated twist drill Made of thru-hardened alloy steel for long cutting life Specifications: Drive Shank:1/4″ Hex Power Bit Shank Drill Size:1/4″ Counterbore Size: 3/4″ Finish: Titanium Nitride Material: Alloy Steel What’s Included: (1) Snappy SD-3 Flat Bottom Counterbore – 1/4″ x 3/4″
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