Collet Chuck Extension Rod Cutter 1/2"(12.7mm) Shank Spring Collet Nut. Type: Collet Chuck. 1PC/PCS Collet Chuck. Shank: 1/2in(12.7mm). 3pcs 54.8mm HSS Wood Circular Saw Mini Disc Blades Drill Tool Set with Mandrel.
eBay