HHIP ER-32 Indexing spin jig with wrench. This indexing and grinding fixture uses ER-32 collets (range 1/16. 13/16") for better griping and accuracy. Extends the capabilities of drill presses, surface grinders, gear cutters and milling machines. Spindle hardened and ground with a.0005" T.I.R. 10 vernier holes for 1° indexing. 2" spindle travel for flute grinding. 5" diameter index plate has a 36 hole circle and is graduated by 0 to 35 for direct indexing in 10° steps and is marked in 5° increments. Spindle lock for tightening collet. Center height is 2.75". Base footprint is 4.5 X 4". Ground parallel to spindle.