7 Pcs Countersink Drill Bit Set, 3 in 1 Wood Pilot Countersink Drill Bits, Depth Adjustable Pilot Drill Bits, Drilling Tool Kit Counter for Woodworking, with Wrenches, 14 Small Screws

Countersink drill bit set:
1*2.5x8mm (3/32" x 5/16")
1*2.8 x 8mm (7/64" x 5/16"),
1*3.0 x 8mm (15/128" x 5/16")
1*3.2 x 8mm (1/8" x 5/16")
1*3.5 x 8mm (9/64" x 5/16")
1* 4.0 x 8mm (5 /32" x 5/16")
1* 4.2 x 8mm (11/64" x 5/16")
Free Hex Key Wrenchs

Features：
1.Perfect drilling is a breeze in both soft and hard woods thanks to the double sharp edges and 90-degree chamfers.
2.Tapered pilot bit creates clean pilot holes and ensures a perfect fit for screws. Drilling, countersinking and drilling in a single pass is easy.
3. Threaded design allows for faster sawdust removal and a smooth surface on any type of hard or soft wood or aluminum.

Warm Tip:
1.The shank of the tool must be fully inserted into the jacket and tightened securely, otherwise it will easily cause the shank to break
2.The knives can only be used for wood processing, can not be used for full genus, stone and other non-metal processing wood materials.
3. The operation must be supporting glasses, ear protection, mask, gloves and other safety measures.