Authentic Easy Wood Tools Ci2-R2 Carbide Replacement Cutter with 2" Radius for Easy Start, Mini and Mid Midi Roughers Lathe Woodturning Tools Ci2-R2 Authentic Easy Wood Tools 100% manufactured in the USA by the leader in carbide insert lathe woodturnings technology Ci2-R2 cutter designed to fit Easy Start, Mini and Mid size roughers; .430" x .070"; 4-40 screw. The perfect grade of carbide produces the best combination of sharpness and durability Optimal grinding process produces the flattest and truest cutting surfaces The right geometry or cutting angle is ground to the produce an edge the cuts cleanly and safely.