This set of two diamond twist drills is for drilling holes in semi-precious stones and hard materials.
Designed for use in drill presses with speed not exceeding 2,000 rpm and with liquid coolant.
- 1 x 0.8mm/0.03" drill
- 1 x 1.2mm/0.05" drill
- 2.35mm shaft diameter
- drill length 5mm/0.2"
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