►Installation of taper shank twist drill

Lifting the drill cassette a bit Slowly, and putting the four cassette drill legs into the four holes, choosing the appropriate size drill box core board according to drill’s standards, lifting the drill bit into the drill core sheet cassette box body, then letting the drill grooves be corresponded with the drill core plates spur box which need to be installed, and make the drill into the box drill, drill bit and drill core is placed on the turntable card. Then followed by the coupling nut screwed on the drill bit.

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