Sorby Excelsior Side / End Swivel Hollowing Tool Tip is a high-performance tip designed for Robert Sorby Hollowing Tools, for rapid initial hollowing and creating crisp angles. Enhanced with a plasma bonded Titanium Nitride (TiN) coating, this tip dramatically increases edge retention and durability, outperforming even the hardest wearing steel and tungsten carbide tools. The TiN finish reduces friction between the tool and wood, making it especially effective when working with hard or abrasive woods and knotted burrs. Crafted from triple tempered High Speed Steel (HSS) with a Rockwell hardness equivalent of 80, it combines longevity with easy sharpening using a diamond file. Compatible with a range of Sorby tools, including the Midi Multi-Tip Hollowing Tool, Articulated Swivel Tip Probe, and Sovereign Multi-Tip Hollowing Tool, this tip ensures more time turning and less time sharpening. Made in England, it reflects the quality and precision expected from Sorby Excelsior Turning Tools. Model Number: RS211GC