Carmex Tiny Tool Holder - Round Shank Short Holder to hold Carbide Small Boring Tool - 25mm Shank x 3mm Bore x 62mm OALThe Carmex Tiny Tool Holder is a compact round shank holder designed for carbide small boring tools. It offers a modest geometry variation over basic bar holders and adds a front coolant attachment for efficient cooling during precision boring tasks. Shank length: 25mm Bore diameter: 3mm Overall length: 62mm Coolant attachment: Front coolant attachment for coolant delivery Geometry variation: Slightly different geometry compared to basic bar holders