Use the Stanley® punch and chisel set for starting drill holes, marking metal, or cutting/splitting hard stone, brick, and concrete. - Hardened striking surfaces have chamfered edges for chip resistance. - Punch edges are ground to a precise angle for efficient punching. - Sizes are marked on shank for easy identification. Tether Style / Tether Capable Number of Pieces / 12 Sizes Included / 1/4, 5/16, 3/32, 1/16, 1/8, 5/32, 3/16, 3/8, 1/2, 5/8 in Punch Piece Design / 1-Piece Design Material / Hardened Steel Length / 6 in Features / Black Oxide Finish Includes / Injection Molded Case