CAT50 ER50 Collet Chuck | G2.5 25,000 RPM | Machinist Choice™

MSRP: $368.73
$178.13
(You save $190.60 )
SKU:
RT324-RT326
Condition:
New
Total: $0.00
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CAT50 ER50 Precision Collet Chucks

CAT50 ER50 precision collet chucks hold round-shank cutting tools in CNC machining centers equipped with CAT50 spindles. The ER50 collet system provides secure, concentric tool clamping for milling, drilling, reaming and finishing. These holders are precision balanced to G2.5 at 25,000 RPM. Select from 3 projection lengths (4, 6, 8 inches) to match tool reach and clearance requirements. Check the comparison chart for dimensions and specifications for each available holder.

Specifications & Tolerances

  • HIGHEST ACCURACY: Taper to Bore Runout < 0.0001" T.I.R.
  • HIGHEST Tolerance: H5 or Better Bore Tolerance.
  • COOLANT CAPABILITIES: Coolant through Spindle AD. Currently in the process or removing the B coolant through the flange capability. If you need this system please contact and confirm as we are doing a running change and phazing this out moving forward.
  • HIGH QUALITY STEEL: Made of High Quality Chromium STEEL..
  • PRECISION BALANCED: G2.5 X 25,000 RPM CERTIFIED..
  • QUALITY CONTROL: 100% Inspection of all Tool Holders
  • DRAW BAR: 1"-8 Thread
  • Veteran Owned Business

Applications

  • Ideal for high-speed CNC milling, drilling, reaming, and finishing operations requiring exceptional accuracy and repeatability.
  • Precision ER collet system provides superior gripping force with excellent concentricity to improve surface finish and extend cutting tool life.
  • Perfect for carbide end mills, drills, reamers, and other round shank tooling where minimal runout is critical.
  • Through-spindle coolant capability delivers coolant directly to the cutting zone for improved chip evacuation, cooler cutting temperatures, and longer tool life.
  • Precision balanced to G2.5 at 25,000 RPM for smooth, vibration-free machining in high-speed applications.
  • Wide ER collet clamping range allows one holder to accommodate multiple tool diameters, reducing tooling inventory and setup time.
  • High gripping force minimizes tool pullout during aggressive roughing while maintaining outstanding accuracy for finish machining.
  • Manufactured for demanding CNC machining centers where tight tolerances, consistent repeatability, and maximum spindle performance are required.
  • Excellent choice for production machining, prototype work, mold making, aerospace, automotive, and precision manufacturing applications.
  • Designed to maximize spindle accuracy, improve part quality, and reduce scrap by maintaining exceptional tool concentricity throughout the machining process.

CAT50 ER50 Collet Chuck Comparison Chart

RMT Part NumberCollet SeriesCollet CapacityNutLL1L2DLocknutWrenchStyleDraw Bar ThreadsWeight
RT324ER500.197"-1.339"ROUND4-1.382.48"--11"-88.379
RT325ER500.197"-1.339"ROUND6-1.382.48"--11"-811.907
RT326ER500.197"-1.339"ROUND8-1.382.48"--11"-815.435
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Ridiculous Machine Tools delivers precision tooling for machinists and manufacturing professionals.

Professional-Grade Tooling. Direct-to-You Pricing.

Ridiculous Machine Tools delivers precision tooling and industrial workholding products built for demanding machining and manufacturing applications.

Our direct-to-consumer business model eliminates traditional distributor markups, allowing us to offer exceptional quality at highly competitive prices. By bringing professional-grade tooling directly to the people who use it, we deliver the performance you expect without the added cost of traditional distribution.

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