This twist drill set includes sizes ranging from 2.1mm to 16.5mm, suitable for drilling and hole-making tasks on metal materials.
Made with HSS 4241 material, the drill bits are compatible with standard power drills for daily machining work.
The bits can be applied in thread repair projects, helping to complete processing tasks with stable .
Suitable for metal drilling, maintenance work, DIY projects, and general machining applications.
A wide range of sizes offers flexible use for different hole diameter requirements in workshop and daily use.