Exsys Tool, Inc.'s industry leading line of PRECI-FLEX® toolholders are a fast, accurate and cost-effective solution for lathe tooling changeovers. The modular system is the first tooling system on the market with a single base holder and multiple tooling adapters that utilizes the ER collet pocket. Offering unmatched flexibility, precision and cost savings, the PRECI-FLEX's compact design assures maximum torque transmission and rigidity, resulting in increased machining accuracy and improved productivity. 

Additionally, PRECI-FLEX's conical and flat face planar interface allows the use of either an adapter or a standard ER collet, and enables collets, endmill holders, expanding collet chucks and shrinks fit tooling to be mounted on a single base holder. Available in a range sizes, PRECI-FLEX provides unsurpassed repeatability, with every toolholder offering repeatability of less than 3 microns. The system also virtually eliminates machine downtime, and allows tooling adapters to be interchanged between fixed and rotary base holders for fast, economical machining. 


  • for lathe tooling changeovers
  • single base holder
  • multiple tooling adapters
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