3 mm Nominal Size
ER40-3 is the 3 mm nominal tool-shank variant for the ER40 collet family.
Royce Ayr ER40 Precision Collet – 3mm Tool Shank – DIN 6388
CA$999.99
Out of stock
SKU
ER40-3
Product Type
Precision ER40 ER Collet
Collet Series
ER40
Nominal Tool Shank
0.1181 in (3 mm)
Standard
DIN 6388
Overall Length
1.81 in (46 mm)
Outside Diameter
1.61 in (41 mm)
Machine Type
CNC Router
Installation
Snap collet into nut before threading nut onto tool holder
Precision ER40
Collet
Precision ER40 Collet
Royce Ayr ER40-3 is a 3 mm precision ER40 collet for securely clamping compatible round tool shanks in ER40 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.
3 mmNominal Tool Shank
ER40Collet Series
46 mmCollet Overall Length
DIN 6388Collet Standard
Precision ER40 Collet
3 mm nominal tool-shank collet for compatible ER40 holders and nuts, with family identification dimensions of 46 mm OAL and 41 mm OD.
ER40DIN 63883 mmSKU ER40-3
Compatible ER40 toolholders and collet nuts. Verify the holder/nut family and nominal tool-shank size before installation.
Main Product Description
The Royce Ayr ER40-3 is a precision ER40 collet sized for a 3 mm round tool shank. It is intended for compatible CNC-router toolholders and collet nuts using the ER40 system.
Royce states its collets conform to DIN 6388. The ER40 family-identification envelope is 46 mm overall length and 41 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.
Technical Specifications
ER40 Collet
- Royce Ayr
- Precision ER40 ER Collet
- ER40-3
- Precision Tool Holding & Clamping
- ER40
- 0.1181 in (3 mm)
- DIN 6388
- 1.81 in (46 mm)
- 1.61 in (41 mm)
- CNC Router
- Snap collet into nut before threading nut onto tool holder
- 3 mm
- CNC Router Toolholding · Precision Tool-Shank Clamping · Router Bit Holding
- Compatible ER40 toolholders and collet nuts. Verify the holder/nut family and nominal tool-shank size before installation.
Best Fit Applications
CNC Router Toolholding
Precision Tool-Shank Clamping
Router Bit Holding
Drill & Boring Tool Holding
ER40 Toolholder / Nut Systems
Product Highlights
DIN 6388 · ER40
The ER40 family envelope is 46 mm OAL by 41 mm OD, supporting positive collet-family identification.
Correct Nut Installation
Royce specifies snapping the collet into the nut before threading the nut onto the tool holder.
Compatibility & Installation Notes
Use only with compatible ER40 toolholders and collet nuts. Confirm the nominal 3 mm 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.
Precision ER40 Toolholding
Royce Ayr ER40-3 combines a 3 mm nominal tool-shank size with the verified ER40 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.