DeWALT DCF921NT

"IRWIN Silver and Deming High Speed Steel Fractional Bit is constructed of M-7 high speed steel for high resistance to abrasion during tough drilling applications. All Silver & Deming bits are 6"" lon more→g and feature a 1/2"" reduced shank that fits all 1/2"" drills. Heavy-duty metal drilling, automotive, body shop, metal fabrication."

The 29 Milwaukee Thunderbolt Titanium coated Drill Bit Set offers convenience and heavy duty performance on the jobsite. Milwaukee Thunderbolt Titanium coated drill bits are designed for extreme durab more→ility and up to 3X longer life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side load breakage. The titanium coating reduces heat build up and keeps the bit sharp to extend performance. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces,…

Diablo's new 2-cutter Self Feed Bits are designed to strict tolerances in the heat forging manufacturing process resulting in energy efficient drilling with up to 2X life per battery charge. Diablo Se more→lf Feed Bits 2-cutter design and an aggressive low thread count feed screw deliver up to 2X more holes per charge. The replaceable feed screw features a pull out stop mechanism that prevents the screw from slipping out when the bit is removed from the material. The combined innovative engineering of Diablo Self Feed Bits makes them the ideal choice for making holes up to 2X faster in soft woods.