Products for bench top machinists | LittleMachineShop.com

Rack, Mini Mill Z-Axis, 13.5" Drilled

Rack, Mini Mill Z-Axis, 13.5" Drilled - Main image
$13.17 $19.95 In stock

This is the rack that provides the Z-axis motion.

This is the rack used on older mini mills and current model 3990 and 4190 mills with air spring. The rack is approximately 13.5" long and there are four mounting holes.

The general class of mills utilizing this rack are in the X2 line by SIEG. Some older X2's use a long rack while newer X2's use a short rack. If your current rack is 8.75" with two holes, see product (1696).

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Customer Reviews (5.0 / 5 · 5 reviews)

Mia ★★★★★

The teeth on this rack are cleanly cut and the 13.5" length was exactly what I needed for my retrofit. Slid right into place and took the guesswork out of the installation.

Thomas B. ★★★★★

The pre-drilled holes lined up perfectly with my mill head assembly, saving me a ton of measuring time. At 13.5 inches, it gives me just enough travel for the work I do.

Alexander ★★★★★

Replaced the worn-out rack on my 3990 mill, and the predrilled holes lined up perfectly with the air spring mount. The 13.5" length was spot on for the full Z-axis travel. My mill is cutting smoothly again with no slop.