JSSEVN - 9PCS Carbon Steel Twist Drill Bit Set, 10mm to 35mm, Auger Bit for Hard and Soft Wood, Optimal Speed Recommendation

【Efficient Chip Discharge】The wood drill bit features a four-flute drilling design for faster chip discharge, ensuring smoother operation and improved overall efficiency.

【Precise Threaded End Positioning】The threaded end of the drill bit can be precisely positioned to prevent misalignment and errors during drilling, ensuring optimal hole positioning accuracy.

【High-Strength Steel】The drill bit is made of high-strength carbon steel, hardened and heat-treated for superior durability and strength. The black-coated surface prevents rust and guarantees a long service life and consistent performance.

【Variety of Sizes】The twist wood drill bit set is available in various sizes to meet different situations and usage needs. No matter the size of the hole you need to drill, you'll find the right drill bit to get the job done efficiently. [Optimal Speed Recommendation] The optimal drilling speed recommendation is given based on the drill bit diameter, ensuring better performance and results during use. This is designed to make the work more efficient and smoother.