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1 7.
STEP DRILLS
Grinding wheel: Depending on the drill, use corundum or diamond wheel.
ATTENTION! Only step drills with two steps can be sharpened!
Grinding of the 1 . Stufe (tip): Alignment and sharpening as for right hand drills
(see picture below).
The second step is adjusted in length and side direction as twist drills.
The tip angle is adjusted on the prism support.
Clearance angle as per your request.
Grind the second step over the right side of the grinding wheel.
Alignment of the tip
Alignment of the step