Machinist Radius Gauge Holder Adjustable Cast Iron Base Layout Tool

classic, high-quality vintage machinist layout tool. This solid piece features a heavy ground cast iron base with a bottom V-groove channel, making it ideal for tracking flat surface plates or stabilizing on cylindrical stock.

Product Highlights:

Precision Pivoting Clamp Arm: Features a dual-sided clamping snug designed to firmly hold standard machinist radius gauge blades, flat stock, or dial indicator stems.

Micro-Adjustment Fine Tuning: Equipped with a large knurled rear thumb screw and spring-loaded rocker assembly for flawless, precise micro-positioning of your setup.

Heavy Industrial Build: Solid cast and steel construction with an excellent low center of gravity for absolute stability during layout work.

Hard-to-Find Tools Since 1978

New • Used • Vintage • American Made • Industrial Surplus

Hard-to-find tools. Vintage tools. American-made tools. Industrial surplus. Specialty tools you won’t find at the big-box stores.

We have not cleaned or refurbished this item in any way, as we leave that decision up to the eventual buyer. We test used items before we list and before we ship to make sure you are getting a high quality and functional tool. Sold with the Tucson Tool Shop 30 Day guarantee! Please check our thousands of positive reviews. We are a brick and mortar store located in Tucson, AZ continuing the legacy of a business that has been around since 1978. We strive to keep all of our customers happy. Customer service is job #1. If you have any questions about this or any item we have listed please do not hesitate to contact us!

Most purchases ship out the same day as long as it is before 2pm AZ time or before the postal service does its pick up for the day. NO shipments go out on Sunday.

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We test used tools.

We photograph what you’re actually buying.

We find the weird stuff.

Ask us if you can’t find it.