A.B. Tool's Accu-Hold Extension Holders Revolutionize Precision Machining

When you're up against a wall and accuracy is critical and your'e cursing the design engineer, the Accu-Hold is THE tool the grizzled old machinists brings over and hands to you before he walks away smiling.

written by Bernard Martin

photo courtesy Alfred Lyon, AB Tools

JMI Tooling & Automation proudly introduces A.B. Tool's Accu-Hold Extension Holders – hailed as the most precise extension holders in the industry. These innovative tools have set the bar very high for accuracy and ROI in machining applications that require small diameter precision.

Unprecedented Precision: A Cut Above the Rest
The hallmark feature of A.B. Tool's Accu-Hold Extension Holders lies in their unparalleled precision. The shanks and inside diameters of these extension holders boast coaxial perfection, achieving an impressive concentricity within .0003". This extraordinary level of precision has been meticulously measured using a .0001" indicator, employing a nominal gage pin projected 1/2” from the end of the holder.
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When you're up against a wall
The Accu-Hold is Ideally suited for those operations where you need to get close to a wall: Collet chucks won't work and end mill holders have too much runout, especially for small diameter cutting tools.  That's why you sometimes find an Accu-Hold hidden away in the back of the old machinists Gerstner box.  It's a "solution" tool!  It's what you need when you need it! 

The precision achieved by Accu-Hold Extension Holders not only surpasses industry standards but more importantly improves surface finish and puts the "precision"  in precision machining. This level of accuracy ensures that every cutting tool used with these extension holders operates with the least amount of runout!

Coolant Access
Accu-Hold Extension Holders provide superior coolant access to the tools. Effective coolant delivery is crucial in preventing heat buildup and ensuring the longevity of cutting tools. Accu-Hold Extension Holders facilitate efficient coolant flow, especially when dealing with smaller tools, thus contributing to a more sustainable and productive machining process.

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Successful Applications Redefining Industries
The Accu-Hold Extension Holders from A.B. Tool have demonstrated remarkable success across various applications including:

1. Micro Machining: Accu-Hold Extension Holders have proven indispensable in micro machining applications, where precision is paramount, and visibility to small tools is crucial.
2. Medical Device Manufacturing: The precision and improved visibility make Accu-Hold Extension Holders ideal for intricate tasks in medical device manufacturing, contributing to the production of high-quality components.
3. Aerospace Components: In the aerospace industry, where stringent tolerances are a prerequisite, Accu-Hold Extension Holders have excelled in providing the precision necessary for critical aerospace components.
4. Automotive Prototyping: Accu-Hold Extension Holders have found success in automotive prototyping, where their precision ensures accurate results in the development of new components.

​Elevating Precision, Redefining Possibilities
A.B. Tool's Accu-Hold Extension Holders marks a significant milestone for every machinist in the pursuit of precision in machining. It's one of those tools that fix a problem that no one knew how to solve.  You need one in your tool box. ​