[High Quality Material] This countersink Drill bits set made of high speed steel, quenching treatment shell designed, high hardness and wear resistance, convenient and fast to drill a hole.
[Different Size Drill] The wood drill bit set contains 7 different size of drill and 1pcs wrench to meet your projects. Thie drills dia includes 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 10mm. These heat treated & tempered high-carbon steel with Titanium Nitrate coating for superior cutting power.
[Special Design] These woodworking drill bits with the special three-pointed bit & five-flutes chamfering design, help to improve the drilling efficiency. The three-pointed bit is better in centering and no skid. So the drilling is accurate and fast with high efficiency. Besides, the large chip flute and five-edge chamfer machine, the operation of faster discharge of sawdust, you will get a nice smooth surface on any type of hard, soft wood or aluminum.
[Adjustable & Flexibility] The countersink drill bit set is convenient to use the combination of hex key to adjust or disassemble the countersink drill bit and the five-flutes chamfering. Perfect to remove five bevel chamfer or adjust counter sleeve depth and drilling depth for screws of various lengths. Just simply loosening and tightening the screw.
[Widely Used] These drills handle is smooth without friction with the machine, and it's suitable for power bench or hand drill driver in the most common size and apply to the hard wood, wooden floor or plastic.