25pcs fully ground HSS twist drill bits with handy plastic box
19pcs fully ground HSS twist drill bits with metal box
The 135 degree split point of the HSS drill bits starts on contact in all types of metal, no walking or skating.
Fully ground drill bits body, black oxide for the most accurate hole dimensions and high concentricity.
Hardened high speed steel body for the drill bits, which can provide addtional safeguard.
5pcs fully ground HSS twist drill bits set
Black oxide surface
Fully groudn body
handy plastic box package