So called because of its curved boat-like shape, boat stones are typically used in the tool and die industry for deburring and breaking sharp edges on large machine parts, but make for an excellent large hand-held stone for bringing a stone to the workpiece rather than the other way around. Think of it like a two-handed puck! One flat face and one textured curved face, with tapered sides for ease of grasping.
An ultra-coarse stone for serious forming, repair, and reprofiling work, the Manticore series of sharpening stones has a bite like no other. Made with ultra-coarse silicon carbide in a homogeneous 80/20 ratio of tough black and friable green varieties in a ceramic bond of carefully tuned hardness. The result is a stone the cuts quickly and aggressively, but without an excessive wear rate. Proudly made in the USA!
Abrasive Type: Black Silicon Carbide (80%), Green Silicon Carbide (20%)
Grit: 260 Micron (FEPA F 60 | ANSI 60 | JIS 60)
Cut Finish: Extra Coarse
Cut Speed: Ultra Fast
Bond Strength: Medium-Hard
Dimensions: 9" x 1-1/2" Long x 1", 2-3/8" At Ends x 1-1/2" At Center
Weight: 1lb 10.4oz