Rolson 48525 7 pc Flat Wood Drill Bit Set

Amazon

Induction hardened hex shank with ground cutting edges For cutting through tongues and grooves of floorboards Fitted with impact absorbing hand protection grip, Weight: 0.8708259349 Pounds, Manufacturer: Rolson

Zoro Tools

7pc Flat Wood Bit Set Manufactured from carbon steel and Titanium coated for durability. 7pc hex shank flat wood bits, sizes include: 10, 12, 16, 19, 22, 25, 32mm