Set of 5 quick-release adjustable hex shank conical drill bits for woodworking with hex key (sizes 5, 6, 8, 10, and 12). 5-piece set of wood screw hole tools.

This 5-piece drill bit set includes pilot holes for screws #5, 6, 8, 10, and 12. The specially designed steel countersink sleeve allows you to countersink or countersink the pilot holes. The countersinking depth is adjustable with an Allen key. The standard hex shank is compatible with quick-change bits. Drilling and countersinking for wood screws is possible without changing the pilot hole. The drilling length is adjustable for screws of different lengths by simply loosening or tightening the locking screw. Specifications: Color: See photos Material: HSS 4241 Drill Bit Black Countersink Bit Body Material: 45 Steel Dimensions: #5: 1.98 mm x 50 mm (L) #6: 2.38 mm x 55 mm (L) #8: 2.78 mm x 60 mm (L) #10: 3.175 mm (0.125 in) x 63 mm (L) #12: 3.56 mm (0.14 in) x 65 mm (L) Shank: 1/4" Hex Shank Package Contents: 5 Countersink Bits 1 L-Steel