Techniks 83512-1/2 Single Angle Collet SYOZ20 EOC12 1/2

Product Description

The TECHNIKS 83512-1/2 is a single angle collet in the SYOZ20/EOC12 collet series, designed for precision workholding in milling and machining operations. It provides a total indicator runout (TIR) of 0.0004 inches, making it suitable for applications where concentricity and repeatability are critical. With a body diameter of 0.78 inches and an overall length of 1.34 inches, it fits standard SYOZ20 and EOC12 collet chucks. Machinists and CNC operators rely on close-tolerance collets like this one to maintain part accuracy across production runs.

This collet is intended for use in machining centers and milling machines equipped with SYOZ20 or EOC12 compatible collet chucks. It accepts a 1/2 inch tool shank, making it a common choice for end mills, drills, and reamers at that diameter. Suitable for both light and moderate cutting applications in job shop and production environments, it is installed by machinists, CNC operators, and toolroom personnel during setup and tooling changes.

Key Features

• SYOZ20 and EOC12 collet series compatibility for broad chuck fitment
• 0.0004 inch TIR for high concentricity and precision runout control
• 1/2 inch bore size accepts standard end mills, drills, and reamers
• Compact 1.34 inch overall length suits tight-clearance applications
• 0.78 inch maximum body diameter fits standard SYOZ20/EOC12 chuck bores

Compatibility

Designed for use with SYOZ20 and EOC12 series collet chucks accepting a 1/2 inch tool shank.

Installation Notes

Installation is performed by machinists or CNC toolroom personnel during machine setup. Always power down and lock out the machine spindle before changing collets. Inspect the collet bore and chuck taper for chips, burrs, or contamination before seating the collet, as debris will directly affect runout. Use the appropriate collet nut wrench and tighten to the chuck manufacturer's specified procedure to avoid over-tightening or under-tightening.