This pack of 3 No. 8 pilot drill bits from DeWalt are suitable for use with the 4 cutter countersink from the DT7612 Flip and Drive holder. The split point tip starts drilling on contact, and the flat part on the shank prevents the drill bit from slipping in the countersink. These drill bits are suitable for hard and soft wood, composite board, and MDF. They have a size of No.8 and a weight of 18g. The manufacturer's part number is DT7609-QZ.