11581 Unibit High Speed Steel Metric Hole Enlarging Step Drill. No.21M 20 mm - 34 mm. Standard Features: Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. Single-flute cutting edge for gre
11581 Unibit High Speed Steel Metric Hole Enlarging Step Drill. No.21M 20 mm – 34 mm. Standard Features: Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates. Single-flute cutting edge for greater control through steps. 3 flatted shank prevents slipping in drill chuck. Also available with titanium nitride coating for longer life. Patented single-flute cutting edge gives the user a true round hole every time. Description: No.21M. Hole Sizes: 20 mm – 34 mm (hole enlarging). Number of Holes: 8 steps.
$25
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