4PCS Mini Indexable Lathe Turning Tool 1/2" Shank Carbide Lathe Turning Insert Tools Set,Metal Lathe Tool Holder for Turning Grooving Threading with Tin Coated Carbide Inserts DCMT21.51

High Precision Insert Blades High hardness, low friction coefficient Good wear resistance and chemical stability More Durable The handle is made of 45# steel, which is very hard and wear-resistant.

EASY TO SET UP Simply tighten the screws to install the blade