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Steel bit with Carbide tip
Use in concrete, block, brick, stone, wallboard and plaster
Fast spiral style for use in conventional power drills
1/4-inch shank
Product Description Power drill type; carbide Tipped steel material; 4 Inch overall length; 2-1/2 inch flute Length; straight shank Type; 1/4 inch Shank size; fast spiral, twist flute Type; 5/16 inch drill size; Cut material Block, brick, concrete, plaster, stone, Wallboard From the Manufacturer Greenlee masonry bits are steel bits with carbide tips for drilling in concrete, block, brick, stone, wallboard and plaster. They are available in two styles: percussion for use in electric hammer and fast spiral for use in conventional power drills. Available in sizes ranging from 3/16" - 1/2" (4.8 - 12.7 mm).