Carbatec 7 Piece Countersink Drill Bit Set

7 Piece Countersink Drill Bit Set All-in-one pre-drilling and countersink bits! Drill screw pilot holes and countersink at the same time without changing drills or bits! Adjustable depth stops ensures the same depth every time and eliminates countersinking too deep Tapered Drill bits designed for both hardwood and softwood Made from High-Speed Steel Wood Screw Sizes Included Drill SizeInch [mm] Countersink SizeInch [mm] 5 1/8 [3. 2] 3/8 [9. 5] 6 9/64 [3. 6] 7 5/32 [4. 0] 8 11/64 [4. 4] 9 3/16 [4. 8] 10 13/64 [5. 2] 1/2 [12. 7] 12 7/32 [5. 6] Includes: 7 x Countersink Drill Bits 7 x Adjustable Depth Stops 1 x Hex Key 1 x Wooden Storage Box Weight 400g.