Carmex Tiny Tool Holder - Square Shank Holder to hold Carbide Small Boring Tool - 3mm Bore x 10x16The Carmex Tiny Tool Holder Square Shank is a precision clamping solution designed to hold carbide small boring tools in tight spaces. Its square shank delivers a secure grip and helps reduce vibration for stable, accurate machining. Square Shank Design: Secure, reliable grip on carbide tiny tools with vibration damping for stable cutting. 3mm Bore: Engineered to hold carbide small boring tools with a 3mm bore. Compact Size: Slim profile ideal for use