Sutton 12 BSW Intermediate Hand Tap M1171270

Sutton Tools is an Australian-owned manufacturer of precision cutting tools and threading accessories, supplying tradespeople, engineers, and manufacturing operations across Australia and internationally. Their product range spans taps, dies, drills, endmills, holesaws, and related tooling — all engineered to perform consistently under real industrial conditions. AIMS Industrial supplies the Sutton Tools range to Australian businesses as part of our commitment to stocking quality, trusted brands.

Sutton BSW (British Standard Whitworth) taps and dies cut the original Whitworth fastener thread — a coarse-pitch, 55°-included-angle thread used on heritage machinery, agricultural equipment, and older British-specification plant throughout Australia.

Where this product is used

Used to cut or restore Whitworth fastener threads on older machinery, heritage equipment, and structural applications that retain imperial Whitworth specifications.

• Cutting BSW threads in cast iron, mild steel, and alloy housings on agricultural machinery, mining equipment, and older British-specification industrial plant.
• Restoring damaged Whitworth threads on machinery frames, guards, and structural components where metric conversion is not practical.
• Producing Whitworth external threads on studs, bolts, and fittings using BSW button dies or die nuts during heritage restoration or maintenance projects.

Key specifications

Selecting the right option

Confirm the nominal diameter and TPI from the existing fastener or drawing — do not assume thread standard from diameter alone, as BSW, BSF, UNF, and Metric all use similar diameter ranges with different pitches. Use carbon steel grade for occasional hand tapping; HSS for machine use and harder materials.