Duplex Diameter Step Drill Bits
$9,999.00
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Our Duplex Diameter Step Drill Bits are for connecting screws with a 2-diameter body (Selby's K1531 and K71025 screws). One drill bit bores a two diameter hole in one operation. The shank is 6.5mm OD x 26mm long and the bit is available in two sizes. Part # Small Diameter Large Diameter Shank X25185X40U 3.5mm x 40mm long 5mm x 5mm long 6.5mm OD x 26mm long X25187X50U 5mm x 50mm long 10mm x 12mm long 6.5mm OD x 26mm long
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