6.35/8/12.7mm Shank Shank Router Bit Collet Extension Chuck Adapter 8mm Shank

Description: High precision stable performance. Durable and practical to use. Shank diameter(optional): 1/4inch (6.35mm) 0.31inch (8mm) 1/2inch (12.7mm) Overlength: 3-1/2 (90mm) Eliminate the dangerous temptation of withdrawing the shank from the collet extend the provide the full depth of cut Make you more efficient to process products. Material: harden steel sturdy and durable Specification: Material: Hardened Steel Specific Size as the picture shown Package Includes: 1 Piece Extension Rod