Sherwood Router ER20 Collet 12 Piece Set

This 12-piece ER20 Collet Set will allow you to hold router bit shanks in your router chuck from 1.0mm up to 13mm in diameter. They are the must have accessory for anyone wants versatility in their routing, perfect for enthusiast and professional woodworkers alike.

Since their development in the 1970s, ER collets have gone on to become an essential element of any well-appointed workshop. Whether you are looking to hold router bits, tooling or even round stock, these collets are the industry standard for machining work.

The ER20 collet system

Increase the versatility of your router setup with the ER20 collet system. Rather than being limited by a router chuck that only accepts 1/4in and 1/2in shanks, the ER20 system allows your router chuck to accept a broad variety of different bit shank sizes from 1mm up to 13mm.

Wide clamping range

Each of the 12 collets in this set are designed to hold a range of router bit shanks within a range of 2mm each. This sizing incrementation means you can hold any diameter tooling in the collet sets collective clamping range, see the specifications page for further information.

Your 12-piece ER20 collet set comes securely package in a foam lined cardboard box. Keep a set in the drawer by your router, enter a new world of routing today.

Precise, easy fit

The broad range of sizes mean you can adapt your router chuck to the bit very precisely. No more slippery router bits that can create hours of rework.

ER20 collets are easy to fit to and remove from your chuck nut. No additional equipment required, simply twist and clip into place for versatile, slippage free routing.

5-Year warranty

All Sherwood products feature a standard 5-Year limited warranty. No other range of routing accessories in its class is more supported than the Sherwood ER20 collet set.

Using the ER collet system

The ER20 collets will fit into any compatible chuck and as you tighten the nut on the chuck, the collet collapses together to hold the tooling in place. The ER20 collets must be fitted into your chuck correctly to ensure a perfect fit and minimise potential damage to the collet. Please use these steps below to insert or remove the collet from the nut.

Step 1. Remove the collet nut from the machine chuck

Step 2. Insert the collet into the collet nut at an angle, turn lightly until it clicks in place diagram A. Ensure the collet is secured as shown diagram B.

Step 3. Insert the collet and nut assembly back onto the machine chuck

Step 4. Insert the tooling shank and hand tighten the nut to hold in place

Step 5. Use spanners to tighten the nut

Step 6. To remove the collet set, just repeat the above steps in reverse