Sutton 90° Deburring Countersink Bit Cross Hole - HSS 43mm OAL

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 90° HSS countersinks and deburring tools produce clean countersunk recesses for flathead screws, or deburr and chamfer drilled holes in metal and composite materials. Cross-hole and single-flute styles suit different applications.

Where this product is used

Used for countersinking fastener holes, chamfering drill entries, and deburring holes in sheet metal, structural fabrication, and precision engineering.

• Countersinking holes for flathead machine screws, rivets, and countersunk bolts in sheet metal, aluminium extrusion, and structural steel fabrication.
• Deburring and chamfering drilled holes to remove sharp edges in safety-critical assemblies and food-grade equipment where burrs are a contamination or injury risk.
• Producing clean countersunk recesses in printed circuit board assemblies, electrical enclosures, and instrument panels.

Key specifications

Selecting the right option

Cross-hole countersinks (C101/C102 series) suit general-purpose deburring and countersinking across a range of diameters. Single-flute (C103/C104) produce a cleaner finish in aluminium and non-ferrous materials where the multi-blade design can chatter. TiNite-coated versions offer longer life in production environments.