Irwin 1 in. Dia. x 12 in. L High Speed Steel Hammer Drill Bit 1/2 in. Straight Shank 1 pc.

3-Flat Secure-Grip hammer/drill bits provide superiority in regards to quality, performance and longevity of life. The 3-Flat Secure-Grip shank is designed to fit in all 1/2 inch 3-jaw hammer/drill chucks and reduces the possibility of the bit spinning in the chuck during heavy torsional loads. The bits drill faster and last longer than other hammer/drill bits on the market due to their reinforced flute geometry and carbide tip design.

• 1 x 12 in. overall length
• 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 percent faster than other competitive bits
• Shot-peened, double-tempered finish reduces breakage
• The patented flute design speeds dust removal for fast drilling and long life, while the shot-peened finish increases surface durability reducing the potential for breakage
• All tips made to ANSI specifications
• Carbide tip, hot isostatically pressed to extend life and resist breakage
• Copper braze material gives high heat resistance for reduced tip loss