Stanley SDH700C

Milwaukee Shockwave impact duty titanium drill bits with Red Helix are engineered for impacts and drills. Designed with a variable Helix that with an aggressive 35 degree cutting edge which ends at 15 more→degree, The quad edge tip delivers a precision start and four cutting edges to create smaller chips. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes.

Milwaukee Thunderbolt Titanium coated drill bits are designed for extreme durability and up to 3X longer life. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate more→strength and protect against side-load breakage. The titanium coating reduces heat build-up and keeps the bit sharp to extend performance. The 135 degree split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces, Milwaukee Thunderbolt Titanium Coated bits require less effort to drill through wood, metal and PVC, and are highly recommended for use with portable drills.

"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."