1/2" to 1/4" Router Bit Collet Extension and Reducer. Extends The Router Bit an Additional 2-1/4" and Accepts 1/4" Shank Router Bits Into the Collet - - Amazon.com
Big Horn - Router Collet -1/4"- Porter Cable Style
Whiteside - Steel Router Collet 3/8" ID 3/4" OD 1-1/4" OL
TRITON 516353 8 mm Router Collet (Pack of 1) Check Valves Price in India - Buy TRITON 516353 8 mm Router Collet (Pack of 1) Check Valves online at Flipkart.com
Your Guide to Router Collets | Popular Woodworking