Drill Bit Set Masonry 7PC 5/32in-3/8in Mil 48-20-885

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" 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. Includes: 5/32", (2) 3/16", (2) 1/4", 5/16", and 3/8" bits in 6" lengths.