Collet Extensions ER - Set of 2
- Shop with confidence with our 3 Year Warranty
- Rated excellent by Trustpilot based on 27,089 reviews
- Over 2.5 million Rutlands® premium woodworking tools sold worldwide
- 3 Year Warranty
- Multi slitted collet fully grips around the router bit shank for safe, secure routing
- Engineered from precision ground steel with unrivalled accuracy less than 0.01mm
- Computer balanced to minimize vibrations ensuring the router bit runs perfectly true
- Transform router tables, bases and jigs, instantly adding 50mm of height to any router bit
- 1/4" & 1/2" shank extensions for use with 1/4" & 1/2" shank bits
The 1/4" extension is supplied with a standard 1/4" multi slit ER16 engineering collet and the 1/2" extension is supplied with standard 1/4" & 1/2" multi slit ER20 engineering collets. These collets fully grip around the router bit shank for safer routing with less vibration. The collets are made from heat treated precision ground spring steel which gives a runout accuracy of less than 0.01mm. The 1/4" collets have been specifically designed to grip over a 1mm range from 6.5mm down to 5.5mm meaning both 1/4" imperial and 6mm metric shank router bits can be used in the extension. The 1/2" collet has been designed in the same way to grip over a range from 13mm down to 12mm meaning both 1/2" imperial and 12mm metric shank router bits can be used. The extension body has been precision machined from a single piece of high-quality steel which has been computer balanced to minimize vibrations to ensure the extension and therefore router bit will run perfectly true.
The precision machined bodies alongside the ER16 & ER20 collets are the ideal combination to give extra height to your router bits while maintaining complete accuracy. The set comprises of two extensions, one with a 1/4" shank and one with a 1/2" shank, both have an overall length of 90mm. ©
- Product CodeR5117
- R5092Collet Extension ER
- ColletER16 6.5mm – 5.5mm
- Overall Height90mm
- Collet Nut Diameter22mm
- R5093Collet Extension ER
- 1/4" ColletER20 6.5mm – 5.5mm
- 1/2" ColletER20 13mm – 12mm
- Overall Height90mm
- Collet Nut Diameter28mm
UK orders placed before 4pm will be delivered the next working day with shipping costing £6. Visit our Shipping page.
Outside of UK Shipping
We ship worldwide to over 200 countries. The total amount you pay includes all applicable customs duties & taxes. We guarantee no additional charges on delivery. Shipping cost and delivery time shown at checkout. Visit our Shipping page.
Click & Collect
Simply select Pick up on the checkout, and we will email you when you order is ready for collection at our distribution centre in Bakewell. Visit our Click & Collect page.
We accept all major credit cards and mobile payment methods. Visit our Payment page.
We will happily accept returns within 30 days. For more information about returns, visit our Returns page.
Precision machined bodies
Computer balanced to minimise vibrations and ensure the router bit runs perfectly true.