FOUR SQUARES SHANK HAMMER DRILL BITS

1.Machined from chrome steel fitted with carbide insert brazed at a very high temperture to withstand severe heating when drilling hard materials, L-shaped flute profile improves dust discharge sand blasted surface. Other industrial surface finish available. 2. For drilling in granite, concrete, stone, masonry, tiles and marble. 3. Sizes: 6.0-30.0mm; Total Length: 120-505mm 4. Can be used with * HITACHI VR16, VRV16, VRT22, VRT22A, *MINDONG HITACHI DH22, DH22V, DH22VA Diameter