Step deep hole bore cutter
2014
The invention provides a step deep hole bore cutter, and particularly relates to a cutter. The cutter comprises a handle, wherein a sleeve sleeves the handle; the sleeve is fixedly connected with the handle; the lower end surface of the sleeve is a tool face; a thread hole is formed in the middle part of the handle; a screw rod is arranged in the thread hole; the tool face is arranged at the front end of the screw rod; a sandwich layer is arranged in the sleeve; the sandwich layer is a threaded hole; bolts are formed in the threaded hole. The cutter has the advantages of being simple in structure, reasonable in design, simple in operation, practical and convenient, and high in precision; after the common drilling work is finished, the cutter is not pulled out, the bolts are rotated, the bolts are screwed on the step surface of a step hole, and the screw rod is rotated for drilling the deep hole again.
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