
Built to Tackle Australia's Toughest Timbers
Boring clean holes in stubborn Australian hardwoods? These "Tri-Grind" Series Tungsten Carbide Forstner Bits are made for the job. They cut effortlessly into end-grain where other bits stall and scorch. Tungsten carbide lasts far longer than traditional high-speed steel, providing a sharp, reliable edge even in challenging conditions that would quickly wear out an HSS bit.
Tungsten also runs cooler than HSS. Combined with the precise geometry of these bits, you can drill multiple holes without overheating the cutting edges or burning the timber. This results in cleaner cuts, longer tool life, and less downtime.
The "Tri-Grind" shank is a versatile design. The 8mm or 10mm shank features three flat facets for secure grip in a standard drill chuck. The rounded faces allow for self-centering in a collet-style chuck, such as our ER-16 Series Extensions. In a grub screw mount extension, the flat face provides solid contact for the screws, while the rounded face sits flush against the bore. This shank works perfectly in any setup.
Key Benefits
- Tungsten carbide edge lasts far longer than high-speed steel, even in the toughest Australian timbers.
- Cuts cool and clean, reducing overheating and timber burn.
- Handles end-grain with ease, providing confidence where other bits struggle.
- Versatile "Tri-Grind" shank grips securely in drill chucks, self-centers in collets, and seats true in extensions.
- Matches perfectly with Tri-Grind and ER-16 Series Forstner Extension bits for all drilling needs.
- Safe, tidy storage with each bit supplied in its own hard shell case.
Main Applications
- Deep boring in tough Australian hardwoods, including end-grain work.
- Lathe drilling with Tri-Grind or ER-16 Series extensions.
- Furniture making, cabinetry, and joinery requiring clean, accurate recesses.
- Salt and pepper grinder bodies, hollow forms, and deep vessel work.
- General workshop drilling in drill presses, power drills, or collet chucks.
Available in metric sizes from 13mm to 50mm, there's a "Tri-Grind" bit for every project. Drill cooler, cut cleaner, and rely on an edge that outlasts HSS. Upgrade your toolkit with these tungsten carbide Forstner bits and tackle the toughest timbers with confidence.
Prices may vary. Printed on June 25, 2026.