AORESAC 8mm to 12mm Shank Router Bit Extension Rod Collet Engraving Machine Extension Milling Cutter for Wood

Specifications: Material: Carbon Steel Type: 8 types(optional) 6mm shank to 6mm shank(A) 1/4 shank to 8mm shank(C) 8mm shank to 12mm shank(D) Package Size: 100*30*30mm/3.94*1.18*1.18in Packing List; 1*Router Bit Collet Extension