The HMT VersaDrive Step Drill bit 4-30mm has a drilling capacity of up to 5mm. The drill bit has ground flutes with easy chip clearance 135 split point angle for easy starting & accuracy. The step drill has a hex shank suitable for use in any standard 1/2” drill chuck for cordless or pistol drills 505020-0300 4-30mm step drill bit 5mm thick drilling capacity ground flutes with easy chip clearance 135 split point angle for easy starting & accuracy Hex shank suitable for use in any standard 1/2” drill chuck for cordless or pistol drills. Adaptors shown in images are sold separately.
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