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The information concerns the buyers of the M100 sharpener. If you place an order before December 15, 2025, you will receive your device in the end of January 2026. Due to the shutdown of the US government, shipments have been delayed due to the shutdown of customs. When making an order, you should expect a delay. We partially manufacture our devices in the EU and our devices require parts to be imported to the USA. Thanks for understanding. Have fun shopping in our store!

Stone Boride 900F on aluminum base
900-F Grit 900; Dimensions: 152 x 25 x 6
Suitable for finishing sharpening of hard steel
Work with oil
 
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.
The soft bond of the Boride 900-F bar allows it to cope well with fairly hard steels of 58-62 units. Therefore, this stone can be safely recommended for the widest range of blades in terms of hardness of steels from the softest stainless steel to very hard high-alloy steels with a high carbon content.
All stones are 6 mm thick and are mounted on high-quality aluminum blanks.
 
 
FORM-FACTOR6" Mounted
ABRASIVE MATERIALAluminum Oxide
BINDERVitrified
GRIT RATINGCoarse Extra Coarse Extra Fine Fine Medium Ultra Fine
USED/ROUTINEWater Oil
ORIGIN OF MATERIAL🇺🇸United States

Stone Boride 900F on aluminum base

SKU: Stone Boride 900F on aluminum base
$19.00Price
Quantity
The goods are expected to be delivered in early November.

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