► Sutton Tools | Drills - Countersinks

Precision 90° Cutting for Clean Professional Finishes When accuracy & finish matter, Sutton Tools Countersinks deliver the precision professionals count on. Built for metal fabrication, CNC machining & general workshop jobs, these tools create clean, burr-free chamfers & deburring on steel, aluminium, timber & plastics. Crafted from High-Speed Steel (HSS)...

Precision 90° Cutting for Clean Professional Finishes

When accuracy & finish matter, Sutton Tools Countersinks deliver the precision professionals count on. Built for metal fabrication, CNC machining & general workshop jobs, these tools create clean, burr-free chamfers & deburring on steel, aluminium, timber & plastics.

Crafted from High-Speed Steel (HSS) & Cobalt (HSS-Co), each bit delivers smooth cutting, long working life & less chatter. Whether you’re machining parts, preparing fastener seats, or finishing components, Sutton Countersinks make sure every hole meets trade-standard accuracy & finish.

Designed for Australian workshops & heavy-duty use, these countersinks are trusted by fitters, fabricators, machinists & maintenance teams who need consistent performance day after day. Every tool is precision-ground to DIN 335 geometry, guaranteeing accurate 90° cuts & repeatable results across materials & production runs.

For complete hole preparation, pair your countersinks with Drill Accessories  — the perfect match for pre-drilling before finishing. Maintain tool life with Drive Lubrication Systems to minimize friction & heat during machining. Keep your workspace running smoothly with Tool & Equipment Care solutions & rely on Same Day Dispatch from Industrial Shed to stay on schedule.

What’s in This Collection:

► Countersink C103 903 Single-Flute HSS 90°
‣ Single-flute design reduces chatter & leaves a clean, polished finish on mild steel, aluminium & plastic.

► Countersink C109 HSS 1-Flute 90° Hex Shank
‣ Hex-shank design for quick bit swaps in cordless drills — ideal for both workshop & on-site work.

► Countersink C107 HSS-Co DIN 335 90° (8 mm–20.5 mm)
‣ Premium cobalt build for outstanding edge retention & heat resistance on stainless & hardened alloys.

► Countersink C105 STF1 4-Piece Three-Flute HSS Set 90°
‣ A trade-ready set covering common hole sizes for all-around workshop versatility.

► Single & Multi-Flute Options
‣ Optimized for clean deburring, chamfering & countersinking using drill presses, CNC machines, or handheld tools.

 

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Built for the Jobs That Can’t Stop

Across Australian workshops, fabrication plants & industrial sites, Sutton Countersinks deliver precision under pressure. Each cutter holds its edge through repeat use, producing clean, consistent results on metals, woods & composites.

Fabricators & mechanics in Somerville, Frankston & the Mornington Peninsula rely on Sutton Tools for smooth finishes that cut down rework & assembly time. The C107 cobalt series handles stainless & alloy steels with ease, while the C109 hex-shank models save valuable time on bit changes in production. The C105 4-piece set covers general trade use — perfect for mobile mechanics or fabrication bays.

For workshop accuracy, use Measuring & Layout Tools to check chamfer angles & hole depth. Expand your setup with Drill Accessories for sheet-metal or composite cutting & back every job with Drive Lubrication Systems to maintain tool performance & life.

Whether you’re preparing countersunk fasteners or finishing precision parts, Sutton Countersinks deliver professional-grade reliability. Industrial Shed supports every order with Same Day Dispatch, trade pricing & the Trade Support Solutions, so your work keeps moving without downtime.

► Precision-ground HSS & cobalt 90° countersinks for accurate, burr-free results
► Cuts through steel, stainless, aluminium, timber & composites
► Works seamlessly with CNC machines, drill presses & portable tools
► Backed by Same Day Dispatch & the Trade Support Solutions

Frequently Asked Questions

Single-flute countersinks cut smoothly & reduce chatter, giving clean, accurate chamfers on steel, aluminium & brass.

Yes. Cobalt countersinks keep their edge & handle high heat, making them ideal for stainless, cast iron & hardened materials that wear out standard HSS bits fast.

Use steady feed pressure, correct spindle speed & a rigid setup. Add Drive Lubrication Systems to reduce vibration & improve surface finish, whether on a CNC or drill press.

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Sutton

Sutton