Iron Rock
4" Dry Core Bit
4-inch dry core bit for drilling through brick, concrete block, cement block, and light reinforced concrete. 4" dry core bit has 5/8"-11 standard threads for handheld tools vented 10-inch steel barrel with premium turbo segments laser-welded for fast low-cost drilling. 4“ dry turbo core bit is 10” long, 4" in diameter and has a 9 ¼” cutting depth.
