Irwin Rotary Percussion - Straight Shank 3/8"x12"x 8" Lubriguard Bit is constructed of M-2

Bit is constructed of M-2 high speed steel for the best combination of strength

Contains 2% iron for deep greening

Provides two locking points

Window Box

lasting up to 40X longer than standard carbide metal cutting saw blades

Irwin Rotary Percussion - Straight Shank 3/8"x12"x 8" Lubriguard Bit is constructed of M-2Rotary Percussion Straight Shank Features: Fits all hammer drills with 3 jaw or Jacobs chuck Chrome vanadium shaft through hardened to 50 53HrC Patented flute geometry removes dust from the hole quicker for fast drilling and long life Up to 150% faster than other competitive bits Shot peened, double tempered finish reduces breakage Hot isostatically pressed to extend life and resist breakage Copper braze material gives high heat resistance for reduced