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drill type
Other
use
/
finish
/
place of origin
Zhejiang, China
warranty
/
customized support
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HSS Cobalt Coating: The cobalt coating reduces friction and heat, ensuring a longer tool life and smoother drilling experience.
Tri-Flat Shank Design: The three-sided shank prevents the drill bit from slipping in the chuck, providing a secure and stable drilling process.
50 Sizes Step Drill Bits: With 5 drill bits covering 50 different sizes, this set offers versatile drilling options for various hole diameters, reducing the need for multiple individual bits.
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