ER Collets Lexis Tooling Systems is an affiliate of Centaur Precision Tools Inc., USA an ISO 9001-2000 company. Centaur is the source for state-of-the-art precision engineered toolholding systems. Centaur products include Toolholding Collets, Collet Chucks, CNC Toolholders, VDI Toolholders, Tapping Systems and Power Milling Chucks. Our Lexis tooling systems ER Collets have, High Accuracy, Versatility, Multiple Applications, Wide Clamping Range, Long Life, Ideal for Tool Extensions, and Precision Manufactured to DIN 6499. Lexis ER Collets can apply in the following recommended applications: Drilling Milling Rigid Tapping Tapping (with Length Compensation) Reaming Boring Coolant Through External Coolant Through High Precision Grinding