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Parallel Shank Counterbores

Parallel Shank Counterbores

Regular price £13.27 GBP
Regular price Sale price £13.27 GBP
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Parallel Shank Counterbores – HSS

Precision-manufactured HSS counterbores designed for producing accurate recesses to suit cap screw heads. Each size features a dedicated pilot for proper alignment and clean seating. Ideal for engineering, fabrication, and workshop use.

Code Size Cutter Ø (d2) Pilot Ø (d1) Pilot Length (I2) Shank Length (I1) Shank Ø (d3)
7740400 M4 8mm 5mm 71mm 14mm 6mm
7740500 M5 10mm 8mm 80mm 18mm 8mm
7740600 M6 11mm 8mm 80mm 18mm 8mm
7740800 M8 15mm 12.5mm 100mm 22mm 10mm
7741000 M10 18mm 12.5mm 100mm 22mm 10mm
7741200 M12 20mm 12.5mm 100mm 22mm 10mm

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