Negative Rake Cutter for MSR OR SSR Tool. Ideal for turning resin and acrylics.
Replacement negative rake carbide cutter insert for Mid Size Simple Rougher or Simple Start Rougher (tools engraved with MSR or SSR).
Screw required: Flat head socket cap screw - 4/40 x 5/16 length - Head 1/16 Allen.
NOTE: These cutter will not fit the full size tools (engraved SR or S90D).