Grinding machineTM-2
Grinding machine 「TM-2」

The Grinding machine is used for sharpening the drill bit that make's the hole into the scallop.
When the edge of the bit become's broken or the corner's become roundish, the drill bit can damage the scallop and making it more difficult for pin placement . However discarding the drill bit is wasteful and become's expensive to replace. Especially the long bit of the automatic ear-hanging machine. The Grinding machine allow's you to sharpen the bit once again. Giveing you a better economy life of the drill bit.

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