PC

The PC stone (Polisher's Choice) is made from premium select grain, premium bond and a proprietary treatment process.  The formulation for the PC was developed through collaboration and extensive testing with polishing professionals from around the world.
The PC reflects a pristine cut with exceptional surface quality, is a quick contouring finishing stone designed for rapid stock removal, and is an outstanding choice for metal finishes requiring a final diamond finish. The PC requires lubricant and is suited well for use by hand or in a profiler.

T2

This specialty treated medium-hard aluminum oxide stone cuts very fast and yet provides a silky, smooth finish. Even the most selective polishing 'pro' will like T2 for high quality mold steel such as P-20, H-13, and 420 stainless.

TH    
 
TH is made from premium grade aluminum oxide, then specially treated to provide a load resistant, smooth cutting action.
Our special TH formulation holds its shape and is an excellent stone choice for EDM surfaces; performing well on all types of tool steels.

T4    

T4 is a specially treated medium aluminum oxide stone that cuts fast and leaves an excellent finish. T4 is similar to T2 but breaks down faster. It works very well on aluminum, not scratching or tearing the surface. Use a lubricant.

AO      

AO is a perfect all around aluminum oxide stone. It has excellent breakdown characteristics and yet retains shape well, especially when polishing mold cavity details. Because the AO is filled with lubricant during the manufacturing process, it does not require lengthy pre-lubrication. 220 grit is an ideal "start up stone" for machined surfaces. The use of lubricant for all grit sizes is recommended. Grits 220 and 320 work well in removing the EDM scale.

900-F   

This stone has super-fine structure and excellent breakdown properties for final finishing prior to mirror (diamond polished) finishing. The 900-F works especially well on P-20 mold steel with a hardness ranging from 29 to 32Rc. The 900-F is primarily used for hand finishing operations. Always use a lubricant with the stone.