Quarter-Inch Shank Router Bit Extender with ER20 Collet Pack
✔️ Accepts 1/4 in and 1/2 in shanks, 2-1/4 in extension

This router collet extension converts a standard 1/4 inch collet to hold both 1/4 inch and 1/2 inch shank router bits, extending the reach and depth of cut. It's commonly used in woodworking, cabinetry, and template routing to finish edges, grooves, and dados with greater control.

✅ Shank diameter: 1/4" (6.35mm); accepts 1/4" and 1/2" shanks (6.35mm & 12.7mm)
✅ Extension length: 2-1/4" (57.15mm)
✅ ER20 spring collets included: 1/4" (6.35mm) and 1/2" (12.7mm)
✅ ER20 M Type Collet Chuck Wrench Spanner included
✅ Includes 1/2" to 1/4" router collet adapter
✅ Steel construction for strength and long life
✅ Pack of five pieces in each set

💡 What is a router collet extension used for in woodworking and why choose ER20 setups?

In short, it's a handy option to reach deeper into cuts and secure bit sizes without swapping the main collet.

• extension lets you reach full depth of cut on larger bits
• ER20 collets provide precise grip on 1/4" and 1/2" shanks
• steel construction resists wear for long life
• reduces tool changes and speeds up workflow