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Drills-drill bit,drilling machine,center drill

PCB bit types PCB drill point of drill bit type: PCB drilling with three straight shank twist drill, drill shank twist drill bits and handle the shovel (undercut) bit.Straight shank twist drill bits are used for the single head drilling machine, drilling and simpler PCB or single panel...
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Drills-drilling machine,drill bit

The clamping length of shank diameter of 4 ~ 5 times before to handle drills in the spring chuck. Always check the spindle presser foot. The contact surface of the presser foot should be horizontal and vertical to the main shaft, so as to prevent drilling and partial...
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