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BS4 size Centre drill

Model: DORA225BS4
Dormer
Centre drill (combined drill and countersink) with 60° straight conical form, double ended and cylindrical body, size BS4 with 1/8" drill diameter, a body diameter of 5/16" and an overall length of 2.1/4", according to BS 328 stand...
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  • Model
  • DORA225BS4

Description:

Centre drill (combined drill and countersink) with 60° straight conical form, double ended and cylindrical body, size BS4 with 1/8" drill diameter, a body diameter of 5/16" and an overall length of 2.1/4", according to BS 328 standard to produce form A centre holes, HSS and bright finish for machining free machining, plain carbon and alloy steel and grey cast-iron

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