1/4 Inch Shank Router Bit Collet Extension Chuck Converter Adapter, Convert 1/2-Inch & 1/4-Inch Shank Bits with ER20 Spring Collet, Router Collet, ER20 M Type Collet Chuck Wrench Spanner -(Pack of 5)

Specifications: Material: steel， Shank Diameter: 1/4 Inch (6.35mm) ER20 spring collet : 6.35mm/ 1/4 inch ER20 spring collet : 12.7mm/ 1/2 inch Wrench Spanner: ER20 M Type; High Carbon Steel; Anti-slip handle Design Package Included: 1 * Router Collet Extension 1 * 1/2" ER20 1 * 1/4" ER20 1 * ER20 M Type Collet Chuck Wrench Spanner 1 * 1/2" to 1/4" Router Collet

• 1.Shank Diameter: 1/4"(6.35mm), Accept Shank Size: 1/4" and 1/2" Shank, Extend Length: 2-1/4". This router collet extension chuck accepts both 1/4" and 1/2" shank router bit for converting and extending.
• 2.Converter Adapter and ER20 Spring Collet Made of steel for maximum strength and long life use; ER20 M Type Collet Chuck Wrench Spanner Made of High Carbon Steel, Anti-slip handle Design, for ER20 M Lathe Clamping Nut.
• 3.Eliminate the dangerous temptation of withdrawing the shank from the collet, extend the bit to provide the full depth of cut. Place the router collet extension shank in the 1/4-inch router collet and the router bit shank in the extension collet and tighten both.
• 4.High precision, stable performance. Extend your router bit to provide the full depth of cut, for both 1/4 inch and 1/2 inch shank router bit.
• 5.This router collet chuck provide the additional depth of cut needed for many routing tasks. Easy to use, better to control, it will improve your work efficiency. Package including: 1* 1/4 Inch shank collet extension,1* ER20 1/2 Inch Collet, 1* ER20 1/4 Inch Collet, 1* ER20 M Type Collet Chuck Wrench Spanner, 1* 1/2" to 1/4" Router Collet.