Techniks 84063-1 | 1" Capacity x 1.379" Width x 1" Shank TG100 Steel Coolant ColletTechniks mission is to provide high quality and innovative solutions that optimize manufacturing processes for customers engaged in metalworking, composites machining, and woodworking to meet the most challenging applications, improve machining processes, and create cost efficiencies. Techniks Swiss Ground Coolant Collets are the most accurate in the industry with T. I. R. of 0. 0004" or less. The Rubber Sealed Plugs are perfect for coolant