Irwin Rotary Percussion - Straight Shank 1/4" X 8" X 12" Sanders Patented jaw design holds bits

Patented jaw design holds bits securely on 6-flatted shanks

15 percent weight reduction

super thin laser cut kerf small diameter blades only provides faster

Carbide tip has a unique diamond-ground

All nozzles packed for storage in a convenient see-thru plastic case

Irwin Rotary Percussion - Straight Shank 1/4" X 8" X 12" Sanders Patented jaw design holds bitsRotary 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