J-4
themacgrinders.com
Hardware / Tool Accessories

J-4

$2,400.00
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Themac

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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.

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