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ER40 Collet 1/2"

ER40 Collet 8mm High Precision P/N C-G-8

High Precision.

Made out of hardened alloy steel.

Ground Surfaces. Size range is 7 to 8mm.

Call for back order status or multiple order discount.

1-714-307-2332 or send inquiries to


ER40 Collet 8mm


Collapsing Range:  8.00mm +0.000 / -1.00mm (Tool Shank Size: 7 to 8mm)

Collet Type: ER 40 Spring Collet, DIN 6499/B

Material: Through hardened alloy spring steel. Precision ground surfaces. Anti-rust treatment.

Manufacturer: Made in Italy.

Recommended Torque: 130 ft/lbs

Run Out: Precision ground surfaces for accurate fit and low run-out. 0.0002″ T.I.R. Suitable for wood and metal working.

Maintenance: Protect from rust with rust preventative spray. Remove preventative before placing into service. Use correct concentration of coolant to prevent corrosion. Always check collets for scoring or wear. Replace if worn or damaged.

Compatibility: Can be used with all ER40 toolholders.

ER40 Collet 25mm Dimensions: D = 41 mm     d = 8mm     L = 46 mm

ER40 Collet

We are a distributor for IMS products.

Equivalent to IMS product part number 99941C or A0251. IMS recently switched to a new part numbering system and the “A” number is the current part number.

The broadness of IMS collets selection allows you to interface and use a collet chuck with a wide range of tools. Thanks to the different degrees of precision and to the optional anti-rust treatments, the IMS collets line satisfies every request and is suitable for any routing and milling application.

IMS Collet Catalog: link

Best Selling ER40 toolholder: link

Torque Wrench: link

Weight .023 kg
Dimensions 3 × 3 × 4 cm