Royce Ayr ER25 Precision Collet – 1/2" Tool Shank – DIN 6388

CA$999.99
Out of stock
SKU
ER25-1/2
Made in Canada
Product Type
Precision ER25 ER Collet
Collet Series
ER25
Nominal Tool Shank
1/2 in (12.7000 mm)
Standard
DIN 6388
Overall Length
1.34 in (34 mm)
Outside Diameter
1.02 in (26 mm)
Machine Type
CNC Router
Installation
Snap collet into nut before threading nut onto tool holder

Royce Ayr · Precision Tool Holding & Clamping

Precision ER25

Collet

Precision ER25 Collet

Royce Ayr ER25-1/2 is a 1/2 in precision ER25 collet for securely clamping compatible round tool shanks in ER25 toolholding systems. Royce states its collets conform to DIN 6388 and should be snapped into the nut before the nut is threaded onto the tool holder.

1/2 inNominal Tool Shank
ER25Collet Series
34 mmCollet Overall Length
DIN 6388Collet Standard

Tool Type

Precision ER25 Collet

1/2 in nominal tool-shank collet for compatible ER25 holders and nuts, with family identification dimensions of 34 mm OAL and 26 mm OD.

ER25DIN 63881/2 inSKU ER25-1/2

System Fit

Compatible ER25 toolholders and collet nuts. Verify the holder/nut family and nominal tool-shank size before installation.

Main Product Description

The Royce Ayr ER25-1/2 is a precision ER25 collet sized for a 1/2 in round tool shank. It is intended for compatible CNC-router toolholders and collet nuts using the ER25 system.

Royce states its collets conform to DIN 6388. The ER25 family-identification envelope is 34 mm overall length and 26 mm outside diameter.

For installation, snap the collet into the nut first, then thread the nut onto the tool holder. Verify nominal shank size, clean mating surfaces, correct holder/nut family and proper tightening procedure before running the machine.

Royce Ayr ER25 precision collet for 1/2 in tool shanks Royce Ayr ER25 precision collet for 1/2 in tool shanks

Technical Specifications

ER25 Collet

  • BrandRoyce Ayr
  • Product TypePrecision ER25 ER Collet
  • SKUER25-1/2
  • Family / SeriesPrecision Tool Holding & Clamping
  • Collet SeriesER25
  • Nominal Tool Shank Size1/2 in (12.7000 mm)
  • StandardDIN 6388
  • Overall Length1.34 in (34 mm)
  • Outside Diameter1.02 in (26 mm)
  • Machine TypeCNC Router
  • InstallationSnap collet into nut before threading nut onto tool holder
  • Key Detail — Nominal Tool Shank1/2 in
  • Additional Verified DetailsCNC Router Toolholding · Precision Tool-Shank Clamping · Router Bit Holding
  • Machine / System FitCompatible ER25 toolholders and collet nuts. Verify the holder/nut family and nominal tool-shank size before installation.

Application Matrix

Best Fit Applications

CNC Router Toolholding
Precision Tool-Shank Clamping
Router Bit Holding
Drill & Boring Tool Holding
ER25 Toolholder / Nut Systems

Performance Details

Product Highlights

01

1/2 in Nominal Size

ER25-1/2 is the 1/2 in nominal tool-shank variant for the ER25 collet family.

02

DIN 6388 · ER25

The ER25 family envelope is 34 mm OAL by 26 mm OD, supporting positive collet-family identification.

03

Correct Nut Installation

Royce specifies snapping the collet into the nut before threading the nut onto the tool holder.

Before Machining

Compatibility & Installation Notes

Use only with compatible ER25 toolholders and collet nuts. Confirm the nominal 1/2 in tool-shank size before clamping. Keep the collet, nut and holder mating surfaces clean; snap the collet into the nut before threading the nut onto the holder; and do not mix collet families that may appear visually similar.

Production Outcome

Precision ER25 Toolholding

Royce Ayr ER25-1/2 combines a 1/2 in nominal tool-shank size with the verified ER25 family envelope and DIN 6388 toolholding standard.

Correct holder-family matching, clean seating, proper nut assembly and appropriate tightening are essential to concentric clamping and reliable CNC-router tool retention.

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