Boride T2 series stones are made of aluminum oxide

Gokumyo stones are universal and can be used to sharpen knives of any steel including high carbon

Magnetizing the blade table can be an effective way of stabilizing the knife while sharpening

Unlike the Pro version

indigo blue

leading edge core upgrade for tsprof k03 and kadet new-variants Boride T2 series stones areLeading Edge Core Upgrade enhances the capabilities of TSProf K03, TSProf Kadet, and Toohr knife sharpeners with features of the Leading Edge sharpening platform. Core Upgrade offers a magnetic working table with a three point knife guide and can be extended with Leading Edge attachments. Core Upgrade utilizes a magnetic block 1. 5 x 0. 5 x 0. 25 inch with powerful N52 grade neodymium magnets. The working surface is coated with a synthetic rubber