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Extensively used for recessing bolt and screw heads. Supplied complete with a hss 60 degree slow spiral drill. Fully adjustable, a hex key is supplied. Used for plywood, particle boards and plastics (abrasive). Use at drilling speeds only. Not suitable for non-ferrous metals. When setting-up, ensure flutes of drill are aligned with flute of counterbore. For replacement twist drills use slow spiral type. Not for use with a router. Specification:. D=25.4Mm. D=12.7Mm. Shank dia.=Drill chuck. Trend catalogue page 150.. Alternatives::. Trend counterbore 1/2 dia x 1 dc/s tr_cb1-12hss. Spare parts::. Trend spare part pack unf1/4 ak/18 tr_sp-u. |
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Screwdriver Bits (606) |
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