The Themac J-4 tool post grinder is built for light duty internal and external grinding and is packaged with a
425 Spindle Assembly. It's recommended for lathes with a 12" to 15" swing.
Specifications:
- 1/2 H.P. Univeral Motor AC-DC 115V
- Speed Range: 5,800 rpm to 42,000 rpm
- Maximum Grinding Wheel Capacity: 4"
- Machine Weight: 20 lbs.
Additional Equipment Included:
- #424 - Extension Spindle for external grinding with 2 wheel collars 3/4".
- #497 - 1/4' Chuck Extension Spindle with 1/8" collet.
Grinding Wheels (inches):
- #266 - 4 x 1/2 x 1/2
- #268 - 2 1/2 x 1/2 x 1/2
- #226 - 1 1/2 x 1/4 x 1/4
Mounted Wheels (inches):
- #202 - 1/4 x 1/4 x 1/8
- #267 - 1 x 1/4 x 1/4
- #203 - 1/2 x 1/4 x 1/8
Two each wheel collars 1" and 2" to fit directly on the Spindle Assembly arbor.