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5pcs Black finished rolled HSS drill bits set
specification
5pcs Black finished rolled HSS drill bits set
China professional HSS drill bit factory, DIN338 HSS twist drill bit, roll forged with black oxide treated surface. 118 degree point.
The drill bits ideal for drilling holes on mild steel, copper, Aluminum, Zinc alloy etc.
Parallel shank.
Made from HSS-high speed steel.
Specification: 4, 5, 6, 8,10 mm
5pcs rolled HSS drill bit packed in handy plastice box