Dewalt dt no6810 pilot drill bits packs of 3 dewalt dt7610 qz this pack of pilot drill bits from dewalt are suitable on hard and soft wood composite board and mdf can be used with the 4 cutter countersinks the split point tip starts drilling on contact and the flat part on the shank prevents the drill bit slipping in the countersink dewalt dt7610 qz no 10 pilot drill bits 3