Gesswein® Finishing Stones

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Gesswein Stone Sets

Our renowned Gesswein Finishing Stones packaged in convenient sets.

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Gesswein Stones

Browse our selection of finishing stones for a variety of applications.

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Exacting Standards

1

Pure Composition

Our stones are composed of the purest aluminum oxide, levigated alumina, and silicon carbide.
2

Careful Grading

For each grit, meticulous grading removes oversized grains, eliminating any possibility of scratching or gouging.
3

Uniform Results

Highest standards of bonding, firing, and cutting ensure an absolutely uniform finish.

Made in USA

We are proud that our Finishing Stones are made locally in Old Saybrook, Connecticut. The proximity of our manufacturing facility allows us to execute a higher degree of quality control and raise our overall standards. More importantly, this also allows us to build and grow at home.

Which Gesswein^® Stone is Right for You?

The following chart contains helpful information to guide you in selecting the appropriate finishing stone based on your application and surface type. Need more tailored advice? Our technical team can assist you in finding the optimal stone for your needs.

Stone	Abrasive Grain	Bond	Hardness	Breakdown Ratio	Wet or Dry	Recommended Metals
Ultra-Soft	White Aluminum Oxide	Vitrified	Very Soft	Very Fast	Wet & Dry	Mold and tool steels including P20, 420SS, and soft non-ferrous metals such as Aluminum, Beryllium, and Kirksite.
Rough Out	Aluminum Oxide	Vitrified	Very Soft	Fast	Wet & Dry	Hard and soft tools as low as Rockwell, C25. Soft non-ferrous metals such as Aluminum, Beryllium, and Kirksite.
General Purpose	White Aluminum Oxide	Vitrified	Medium	Moderate	Wet	All tool steels of all hardness such as A2, D2, M2, S7, and H13.
Moldmaker	Black Silicon Carbide	Vitrified	Medium Soft	Fast	Wet	Hard and soft tools as low as Rockwell, C25. Soft non-ferrous metals such as Aluminum, Beryllium, and Kirksite.
Diemaker	Brown Aluminum Carbide	Vitrified	Medium	Moderate	Wet & Limited Dry	All mold and tool steels of all hardness such as A2, D2, S7, H13, P20, 420SS and soft non-ferrous metals such as Aluminum, Beryllium, and Kirksite.
Ruby Rough Out	Ruby Aluminum Carbide	Vitrified	Medium	Moderate	Wet & Dry	All tool steels of all hardness such as A2, D2, M2, S7, and H13. Soft non-ferrous metals such as Aluminum, Beryllium, and Kirksite.
Super Fine	Aluminum Carbide	Vitrified	Medium	Moderate Fast	Wet & Dry	All tool steels of all hardness such as A2, D2, M2, S7, and H13.
G2	Brown Aluminum Carbide	Vitrified	Medium	Slow	Wet	Ideal for steels such as P20, H13, and 420SS.
Oil-Treated	White Aluminum Carbide	Vitrified	Medium Hard	Moderate	Wet & Limited Dry	All tool steels of all hardness such as A2, D2, M2, S7, and H13.
Mold Maker PLUS	Green Silicon Carbide	Vitrified	Medium Hard	Moderate Fast	Wet	All mold and tool steels of all hardness such as A2, D2, S7, H13, P20, 420SS and soft non-ferrous metals such as Aluminum, Beryllium, and Kirksite.
Premium White	White Aluminum Carbide	Vitrified	Medium Hard	Slow	Wet	All tool steels of all hardness such as A2, D2, M2, S7, and H13.
EDM	White Aluminum Carbide	Vitrified	Hard	Slow	Wet	Medium and Hard tool steels as high as Rockwell C62.
EDM Blue	White Aluminum Carbide	Vitrified	Very Hard	Slow	Wet	Medium and Hard tool steels as high as Rockwell C62.
RA	Aluminum Carbide	Resin	Very Hard	Slow	Wet	All tool steels of all hardness such as A2, D2, M2, S7, and H13.