Ryobi PBLDD01B

Get it all done with one when you choose IRWIN Unibit high speed steel drill bit

Milwaukee COBALT RED HELIX drill bits are engineered for extreme durability and long life in hard metal applications. Designed with a variable helix that includes an aggressive 35 helix angle which more→ends at 15 , the cobalt bits with RED HELIX provide Rapid Chip Removal limiting heat buildup to Stay Sharper Longer. The 135 split point tip delivers a precision start and prevents walking for fast, accurate holes. Ideal for tough applications and provide up to 10X life vs. Black Oxide Drill Bits but can be used in all twist drilling applications.

The Milwaukee 21-Piece THUNDERBOLT Black Oxide Drill Bit Set delivers a comprehensive selection of fractional sizes for heavy-duty drilling tasks. Milwaukee engineered each bit with a Thunderbolt web, more→a thicker-than-standard core that resists snapping under side-load pressure. The parabolic flute design clears chips quickly for faster drilling. A 135° split point tip bites on contact and prevents walking across the workpiece. The 3-flat Secure-Grip shank locks into standard drill chucks to prevent slipping during high-torque work. Black oxide coating adds lubricity and corrosion resistance across all 21 bits. The set covers 16 fractional sizes from 1/16 in. to 1/2 in., with duplicates of fi…