Allied Machine and Engineering
The Allied Machine and Engineering T-A Pro M geometry insert.

New-Geometry Insert for Stainless and HRSA Drilling

July 14, 2022
ISO-material class M geometry and proprietary margin design, plus a new AM460 coating, combine for a tool with low cutting forces, high penetration rates, and long tool life.

ALLIED MACHINE AND ENGINEERING, a manufacturer of holemaking and finishing cutting tools, launched the T-A Pro M geometry insert for stainless steel and heat-resistant super alloy (HRSA) materials. With the release of the ISO-material class M geometry and proprietary margin design paired with the development of the new AM460 coating, Allied Machine is able to provide a tool that offers low cutting forces, excellent penetration rates, and long tool life in challenging stainless and heat-resistant super alloys.

The new insert geometry produces the best results with the newly designed T-A Pro holders but is also compatible with T-A holders and is offered in Z-3 series with diameters ranging from 0.437 inches – 1.882 inches (11.10 millimeters – 47.80 millimeters.)

In industries like aerospace, automotive, energy, and food service that often machine stainless steel and HRSA materials, the cost-effectiveness and reliable performance of the M geometry insert are a necessity due to the high costs of these raw materials, which are among the highest in manufacturing. Because the use of these materials continues to increase, improved drilling solutions like the M geometry target difficult-to-machine materials — a critical factor in remaining competitive in any market.

Additionally, the design elements of the T-A Pro M geometry allow larger diameters — 1 inch and higher — to be used on smaller or under-powered machines where additional set-ups on other machine tools would be needed or where parts would need to be contracted out. Machining components in-house cost-effectively while meeting specifications every time ultimately increases throughput and profitability.

“In a material class where applications are known to bring unpredictable results, the new M geometry T-A Pro insert has been engineered to provide a winning combination of tool life, penetration rate, and process reliability so that you can feel confident when applying the tool to your specific needs,” explained John Weniger, product manager. “The addition of the M geometry solidifies the T-A Pro line as a comprehensive, industry leading solution when it comes to holemaking.”

Learn more at

Latest from New Products