This convenient adaptor allows chucks, face plates and threaded wooden fixtures to be mounted in vises, collet chucks and special holders for off-the-lathe work or for transfer between lathes with different size spindles. It comes in four popular sizes: 1"- 8, 1-1/4"- 8, 3/4"- 16 and 33 x 3.5 mm. It is made of steel with a 5/8" shaft, 4-1/2" long and is a handy partner for out Lathe Spindle Taps. Made in Canada