Our TCT (tungsten carbide tipped) cylinder boring bits deliver clean, tear-free drillings in hardwoods, coated and plastic-coated chipboards, as well as acrylic, Corian®, GFRP, HPL, polycarbonate, PVC and Trespa® panels. Diameters Ø 8–12 mm feature a full TCT head with spiral; from Ø 50 mm onward they include a 10 mm hex shank for superior torque transfer. Precision diamond-ground on CNC machines ensures exceptional accuracy and long service life. Note: Designed primarily for stationary use.

✨ Key Features

• Carbide-Tipped Cutting Edges – Centre point, two main blades & two spurs for minimal wander and razor-sharp cuts

• Hexagonal Shank (Ø 50 mm+) – 10 mm hex from Ø 50 to 60 mm for slip-free power transmission

• Diamond-Ground Geometry – Special curved grinding on main edges (from Ø 25 mm) for consistent hole quality

• Low Effort Drilling – Optimised flute design and serrated rim reduce feed force, friction and heat

• Extended Tool Life – High-quality carbide and alloyed steel core withstand hard woods and plastics

• Set Compatibility – Available as individual bits or in wooden-case sets for professional workshops

⚙️ Technical Data

Example Ø 30 mm bit:
• Drill Ø: 30 mm
• Stem Ø: 13 mm
• Cutting Length: 57 mm
• Overall Length: 90 mm
• Shank: 13 mm (or full TCT head for Ø 8–12 mm)

📐 Available Sets

All supplied in a wooden case

• 5-pc: Ø 15, 20, 25, 30, 35 mm
• 6-pc: Ø 15, 20, 25, 30, 35, 40 mm
• 8-pc: Ø 15, 20, 25, 30, 35, 40, 45, 50 mm
• 10-pc: Ø 10, 15, 18, 20, 22, 25, 26, 30, 35 mm
• 15-pc: Ø 10, 12, 15, 16, 18, 20, 22, 25, 26, 30, 35, 40, 45, 50 mm
• 5-pc Mill Set: Ø 22, 25, 38, 42mm and 250 mm extension

🪵 Typical Applications

• Precision dowel, hinge-cup & fitting bores

• Clean through-holes and countersinks in solid wood and panels

• Drilling in hard plastics and HPL-coated boards

• Stationary deep-hole boring with minimal tear-out

💡 Why Choose Our TCT Cylinder Boring Bits?

With their carbide-tipped cutting edges, precision diamond grinding and robust hex shank (on large sizes), these bits outlast standard HSS tools—delivering faster cuts, cleaner edges and unbeatable longevity across wood and composite materials. Perfect for cabinetry, joinery and industrial applications.