CRL QU1CKB1T QuickBit 3/8" Countersink/Drill Bit

Drill, countersink, and drive screws without switching three separate bits in and out of your power tool. With a single hand, flip between drilling countersunk holes and driving screws. The countersinking drill and screwdriver bit are secured with set screws, so you can switch them out for any bits with a 1/4? hex shank. The countersinking drill has an 82? angle, allowing inch-sized flat- and oval-head screws to sit flush with the surface. For No. 10 Screw Drill bit size: 1/8? Countersink Body Diameter: 3/8? Maximum Hole Drilling Depth: 1"