7pc Prem Perc Drill Bit Set

Rock Carbide bits with four flute carbide head that provides longer bit life with a special enlarged flute design that channels debris out of the hole for fast, efficient drilling into masonry, concrete, rock, and artificial stone. The bits in this set are intended to make holes for mechanical anchors. No-Spin Shank to eliminate bit slippage; used with 3/8" and 1/2" sized chucks. Includes: 3/16"x3", 1/4"x4", 5/16"x6", 3/8"x6", 1/2"x6" and (2) 1/4"x6".

• HAMMER DRILL BIT SETS
• ROCK CARBIDE TIPPED
• 7 PIECES