► 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.

 

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.

Brands

Solutions Built for Tradies: How Industrial Shed Powers Your Success

At Industrial Shed, we understand that reliable tools are the backbone of any successful project. That’s why we stock durable, high-performance equipment designed to handle tough jobs without breakdowns or delays. Trade professionals across the Mornington Peninsula and Melbourne trust our range for its dependability and long-lasting quality.

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At Industrial Shed, we’re more than just a tool retailer—we’re your partner in productivity. Serving Melbourne and the Mornington Peninsula, we provide trade professionals with the trusted tools, advice, and support they need to succeed on every project.

Our independent approach ensures we prioritise your needs, from reliable product recommendations to tailored solutions. With our high-quality gear and expert service, you can count on us to help you work smarter and achieve more.