CNC Lathe Inserts OSCARBIDE 1/4 Inch Mini Indexable Carbide Lathe Turning Tool Holder Lathe Bit Set With Carbide 10 Pack Turning Tool Inserts Size: TCMT090204, 3/32 Thick, 1/64 Radius, 7 degrees relief angle Replacement inserts TCMT090204 for this kits ,please search the Asin B07Q2HNGVF to buy it on Amazon Versatile & Easy to Operate: The total length of the metal lathe cutting tools is 7.17 in / 182 mm, making them suitable for semi-precision and rough machining of steel and metals Designed for Steel, cast iron and non-ferrous materials TCMT carbide insert is a 60°triangle with a 7°relief. The center hole is a 40°-60° single countersink, and there is a single-sided chip breaker OSCARBIDE Carbide Turning Inserts TCMT090204 TCMT Insert CNC Lathe Inserts for Lathe Turning Tool Holder Replacement Insert, 10 Pieces TCMT 110204 MP DP25A Carbide Inserts for Turning MT-CVD Coated for Fit Our 1/4 or 5/16Mini Turning Tool holder set or Other Brands the same size carbide inserts, you can search the Asin:B07N2CZQKQ or B07SX1CYYZ to to purchase the set directly.