► Sutton Tools | Drills - Countersinks Coated

Coated Precision for Clean, Burr-Free Finishes

When you need fast, chatter-free countersinking, Sutton Tools delivers. These Coated Countersinks are made for machinists who demand smooth finishes & long tool life. Crafted from HSS-Co (Cobalt High-Speed Steel) with TiN & TiAlN coatings, they cut cleaner, last longer & resist heat under heavy use.

From structural steel to stainless & alloy plate, these countersinks remove burrs & create perfect seating for fasteners. Many trades pair them with Drill Accessories for accurate hole prep or use Cutting & Grinding Tools to fine-tune surfaces before final assembly. For workshop setups, Tap & Die Sets & Measuring & Inspection Tools keep your holes aligned & consistent to spec.

Industrial Shed stocks the complete Sutton range with Same-Day Dispatch across Australia, keeping production lines & job sites running without downtime.

What’s in This Collection:

► Countersink C106 STF1TSET 4 Pce Three Flute HSS TiN 90°
‣ Complete set for clean chamfers in metal, plastic & composite materials.

► Countersink C108 31.0 mm UNI DIN335 HSS-Co TiAlN 90°
‣ Large-diameter TiAlN-coated countersink for precision structural work.

► Countersink C108 25.0 mm UNI DIN335 HSS-Co TiAlN 90°
‣ Heavy-duty cutter designed for fast metal removal with a smooth finish.

► Countersink C108 19.0 mm UNI DIN335 HSS-Co TiAlN 90°
‣ Balanced geometry reduces vibration & ensures even chamfering.

► Countersink C108 15.0 mm UNI DIN335 HSS-Co TiAlN 90°
‣ Mid-range cutter ideal for general fabrication & workshop jobs.

► Countersink C108 12.4 mm UNI DIN335 HSS-Co TiAlN 90°
‣ Versatile tool for sheet metal & precision components.

► Countersink C108 8.4 mm UNI DIN335 HSS-Co TiAlN 90°
‣ Perfect for smaller assemblies requiring clean fastener seating.

► Countersink C108 6.3 mm UNI DIN335 HSS-Co TiAlN 90°
‣ Fine-cut countersink providing burr-free edges in tight spaces.

► C/Sink Carbide Inserts for C110 Large 90°
‣ Replaceable carbide inserts extend tool life & maintain consistent finish.