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

Product description

• Shank Diameter 1 2"(12.7mm), 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.
• 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.
• 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.
• 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 2-inch router collet and the router bit shank in the extension collet and tighten both.
• 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 2 Inch shank collet extension,1* ER20 1 2 Inch Collet, 1* ER20 1 4 Inch Collet, 1* ER20 M Type Collet Chuck Wrench Spanner.