• M Type ER20M wrench NOT included. Need M Type ER20M wrench to tighten the collet. [Note: The ER20M Wrench is NOT included, please search ASIN: B07WTYDKY4 on Amazon. ]
  • Shank Diameter: 1/2"(12.7mm), Accept Shank Size: 1/4" & 1/2" Shank, Extend Length: 2-1/4"
  • 2 In 1 Fuction: This router collet extension chuck accepts both 1/4" and 1/2" shank router bits for converting and extending.
  • Better Safety: Eliminate the dangerous temptation of withdrawing the shank from the collet, extend the bit to provide the full depth of cut instead of short shanking your router bits.
  • Industrial Grade Quality: Made of durable steel for maximum strength and long life use.
  • M Type ER20M wrench NOT included. Need M Type ER20M wrench to tighten the collet. [Note: The ER20M Wrench is NOT included, please search ASIN: B07WTYDKY4 on Amazon. ]
  • Shank Diameter: 1/2"(12.7mm), Accept Shank Size: 1/4" & 1/2" Shank, Extend Length: 2-1/4"
  • 2 In 1 Fuction: This router collet extension chuck accepts both 1/4" and 1/2" shank router bits for converting and extending.
  • Better Safety: Eliminate the dangerous temptation of withdrawing the shank from the collet, extend the bit to provide the full depth of cut instead of short shanking your router bits.
  • Industrial Grade Quality: Made of durable steel for maximum strength and long life use.