Carmex Carbide Round Shank Holder Through Coolant - for Indexable Carbide T8 Inserts - 8mm Shank x 30mmThe Carmex Carbide Round Shank Holder With Through Coolant is engineered for milling with indexable carbide inserts. Sized for compact toolpaths, it features an 8 mm shank and 30 mm length, and is compatible with both T8 and T10 insert types as part of the Mini Tools family. Through Coolant: Designed to allow coolant flow through the holder for improved heat management and chip control. Shank size: Round shank with an 8 mm diameter and a 30 mm length