Hex Step Drill 4 - 22mm ( $4.17 )

Hex Step Drill 4 - 22mm

Main Features: A bit can open a variety of specifications of aperture. Do not need to use center punch, compared with the ordinary twist drill, it is not easy to be broken. Deburring, chamfering, elliptic hole enlargement. Use for drill, bench drill. Work with water cooling can effectively extend the service life of drill bit, recommend drilling rate is 250 - 250 RPM.

Hex Step Drill 4 - 22mm

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