Whiteside Adjustable Countersink & Taper Point Drill Bit Set

Whiteside’s 82° Countersink Heads are designed to slip over the drill bit and affix with dual set screws into the flutes. Adjust the drilling length by sliding the head up or down the bit. You can countersink clean holes in wood, plastic, or aluminum for flat head screws. These bits provide quick chip ejection and less heat during drilling and clean holes with 4-flute, carbon steel countersinks. Available in a 4-piece set that includes 4 carbon steel countersinks and 4 high-speed steel taper point drill bits.