These tungsten carbide bits (spear drills) can be used for both milling and drilling operations. Appropriate for some semi-precious stones, pearls, PCB printed circuit boards and fibreglass.
We recommend these to be used in conjunction with The Micromot steel collets.
- 1 x 2.3mm/0.09" tungsten carbide cylinder mill
- 1 x 2.3mm/0.09" tungsten carbide ball mill
- 2.35mm shaft diameter
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