Spiral Wood Drill Bits, 7PCS SDS-Plus Wood Drill Bits Set Carbon Steel Spiral Hole Cutter Woodworking Tool Kit, 6mm/8mm/10mm/12mm/14mm/16mm/18mm Diameter

【HIGH-QUALITY MATERIAL】Quickly and cleanly drills smooth, straight holes in hardwood or cork. 【7 SIZES】There are 6 diameters Various auger drill bits, including 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, total length: 230mm/9.05'', to meet your different needs. 【SDS HANDLE DESIGN】The unique design ensures that the shank does not slip during operation, and the SDS shank can be used with hand drills and drill presses. 【SELF-STEERING THREAD HEAD】The automatic threaded head at the front of the drill bit allows for accurate and quick positioning of the drill bit on the wood for easy drilling. Center twist drill with large and wide blade. The solid center design makes the drill bit stable and sturdy during drilling. The wide blade allows for faster drilling, easier chipping, and smooths hole walls. 【DIY ACCESSORY】 The auger tips made of high-quality carbon steel are rust-resistant and durable.