Unique extra small diameter solid carbide compression spiral bit for intricate work, signmaking, cutting out lettering and shapes. Features special adapter to fit handheld trim routers, routers and CNC machines., #47632, diameter (D) 1/2, shank (D) 1/4, overall length (L) 1-1/4, L1 29/32, inner diameter (id) 1/8, slot width 1/32, 47632 adapter 1/8 inner DIA x 1/4 shank for handheld trim routers routers and CNC machines