Cobalt Drill Bit Set - 6pcs High-Speed Steel Serrated Grooving Cutting Bits for Metal, Wood & Carpenter Work - Impact Driver Compatible Spiral Saw Bits for DIY, Woodworking & Professional Use

made of high- steel, and durable, good texture, and can serve you for a long time.

It can be widely used in drilling of metal, wood, etc. very practical.

Twisting design improves cutting efficiency and can effectively avoid slippage.

They have high hardness and wear resistance, can provide accurate positioning and high efficiency.

Fine workmanship, excellent work performance, fast execution and maintaining strength and efficiency.