Techniks 04011-55/64 | 0.843" - 0.859" Capacity x 55/64" Shank x 2.001" Width TG150 Steel Super Precision 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 Precision TG Spring Collets are Swiss ground and hand inspected to ensure that T. I. R. is 0. 0004" or less. They have a clamping range of 1 64". Product