ER11 Collet – High Precision 0.005mm (5µm)

Our ER11 Collet – High Precision, made from high-quality 65Mn Carbon Steel, is quenched and hardened for maximum durability. The internal and external surfaces are finely ground, ensuring exceptional precision and stability during cutting operations. With an outstanding precision of less than 0.005mm (5 microns), this collet guarantees accurate machining results. Its meticulously ground and polished surface provides high wear and heat resistance, ensuring long-lasting performance and reliability. Designed for use with ER tool holders, shanks, and extension ER11 collet nuts, this collet is ideal for various equipment including CNC machines, milling machines, engraving machines, and machining centers. Perfect for milling, boring, drilling, and engraving applications. Featuring a runout tolerance of 5 microns, our high-precision collet ensures minimal Total Indicated Runout (TRI), contributing to precise machining results.

We offer 3 sizes of ER collet sets to suit your spindle; ER11, ER16 and ER20. The listing is for individual ER11 collets.

The ER16 Collet – High Precisions can be found here.

The ER20 Collet – High Precision can be found here.

Specifications:

• High-quality 65Mn Carbon Steel material
• Precision less than 0.005mm (5 microns)
• High wear and heat resistance
• Runout tolerance of 5 microns for minimal TRI

The physical dimensions of the ER11 collets are shown below:

Tips and tricks:

Please use the steps and diagram below to insert or remove the collet from the nut,

• Insert the collet into the collet nut at an angle, and turn lightly until it clicks in place. (Step A)
• Please ensure that the collet is secured as shown in step B.
• Insert the collet and nut assembly onto the spindle.
• Insert the end mill and hand-tighten the nut to hold the end mill in place.
• Use two spanners, one to tighten the nut and the other to stop the spindle shaft from turning.
• To remove the collet set, just repeat the above steps in reverse. (Step C)

Regular submersion in oil and anti-water formulas is recommended if water spraying on the end mill is used.

Please Note: 

• Make sure to select the correct collet set for your spindle.
• Collet nut is not included.
• Spanners are not included.

Package Includes:

• 1 x ER11 Collet – High Precision

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