Products for bench top machinists | LittleMachineShop.com

Potentiometer, XMT Controllers

Potentiometer, XMT Controllers - Main image
Potentiometer, XMT Controllers - View 2
$8.03 $12.75 In stock

This speed control potentiometer works a mini lathes and mini mills where the part number on the circuit board begins with XMT. It has a switch on the back that is used with the safety interlock.


This is a 4.7K pot with a switch. The switch contacts are open when the switch is in the fully counterclockwise (off) position.


Use this potentiometer on machines where the motor controller board part number begins with XMT.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 5 reviews)

Madison W. ★★★★★

Plugged it into my mini mill and the speed control is much smoother than with my old one. The safety interlock switch works perfectly with the machine's existing setup. This got my small lathe running like new again for a fair price.

Hannah W. ★★★★★

The switch on the back clicked into place perfectly with my mill's safety interlock, making the setup feel much more secure than my old makeshift knob. My XMT controller board finally behaves predictably now during slow-speed cuts.

Emma ★★★★★

I'd been putting off fixing my mini mill, but this potentiometer finally let me dial in speed precisely at 200 RPM increments. The switch on the back for the safety interlock made me feel a lot better about using it too.