Differential helix
Article no. CH-50052240
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- This example shows a drill with differential helix. The changing helix angle along the diameter is clearly visible.
- This option demands item no. CH-50052380 (Complex drills / step drills) and no. CH-50052240 (Differential helix).
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- This example shows a stepdrill with differential helix. The changing helix angle along the step is clearly visible.
- This option demands item no. CH-50052380 (Complex drills / step drills) and no. CH-50052240 (Differential helix).