Carmex Tiny Tool Holder - Square Shank Holder to hold Carbide Small Boring Tool - 5mm Bore x 08x16The Carmex Tiny Tool Holder Square Shank is a compact, precision holder designed to secure carbide small boring tools (Tiny tools) with a square shank. It delivers steady performance in tight spaces and small components. Square shank design: provides a secure and reliable grip for precise tool registration and consistent cutting alignment. 5mm bore: accommodates carbide small boring tools, enabling accurate, miniature boring operations. Compact form