Quarter Inch Shank Router Bit Collet Extension Chuck Converter Adapter That Lets You Run One Half Inch And One Quarter Inch Shank Bits With ER20 Spring Collet Router Collet Includes ER20 M Type Collet Chuck Wrench Spanner Pack Of Five

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