Spaceage Ceramic Guideblocks Rectangular Ceramic Honing Tool
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Spaceage ceramic is manufactured by pressing alumina oxide at 15,000#PSI and scinted at 3,000F. Ceramic products can withstand temperatures of 3,000F, have a compression of 300,000#PSI and a hardness of 9.5
Made in the U.S.A.
This is an excellent honing tool for knife blades, fish hooks and broadheads.
It outlasts every other guideblock on the market!
It's in the material! Spaceage Ceramic Guideblocks are made of Aluminum-Oxide - the same material used to make ceramic products for NASA.
Size: 3" x 2" x 1/4"
This product is USA born and raised.