Sutton 21/64" Cobalt Jobber Drill Bit - Imperial - Colour Temp

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 HSS jobber drill bits are precision-ground general-purpose drills available in the Silver Bullet (steam-oxide finish) and Blue Bullet (blue-finish for ferrous metals) lines, covering both metric and imperial sizes. Suitable for hand-held drills, drill presses, and light CNC applications.

Where this product is used

Used for general-purpose hole-making in metals, plastics, timber, and composite materials in workshops, fabrication shops, and on-site.

• Drilling pilot, clearance, and tap-size holes in mild steel, aluminium, brass, and non-ferrous metals during fabrication, fitting, and assembly work.
• General-purpose on-site drilling with handheld power tools for installation, maintenance, and construction trades.
• High-volume hole-making on drill presses and production benches in light engineering and sheet-metal shops.

Selecting the right option

Silver Bullet (steam oxide finish) suits general applications in ferrous and non-ferrous metals. Blue Bullet (blue finish) is optimised for ferrous metals. For stainless steel, spring steel, or hardened materials, upgrade to cobalt-grade drills. Match drill diameter to your required hole size or tap-drill chart.