Robert Sorby - Square TC cutter for TurnMaster
RSTM-CT3
Designed for generating square sections such as shoulders or tenons where a turned part is to be assembled into a hole – a chair leg is good example. This cutter is also useful on the outside of a round form, as well as long straight sections on spindle work. Excellent results can be achieved in shear scraping mode with cutter especially effective shear scraping on the outside of a bowl. This version of the cutter being manufactured with micro grade tungsten carbide will deliver long lasting results.
Sharpening: Use a diamond file or diamond plate flat across the top face. To gain best results and increase the longevity of the cutter this simple procedure should be done little and often.
Use the TurnMaster cutter holder to reshape the profile on the Robert Sorby ProEdge using a diamond belt or on a grinding wheel using diamond or other high density abrasive material.
Sharpens to: 0.7 microns
Hardness: 90 RC
Material: micro grade tungsten carbide
These cutters are designed specifically for the TurnMaster
Tungsten Carbide is a compound engineered for exceptional strength and resilience. Cutters made from this material offer outstanding longevity thanks to its excellent wear resistance, meaning they require minimal maintenance and infrequent sharpening. In most cases, it’s more effective to replace tungsten carbide cutters rather than attempt to resharpen them.
It's important to note that tungsten carbide has a slightly larger grain structure than other materials, meaning it can't always achieve the finest edges.

