Allied Machine Original T-A Drill - Engine Builder Magazine
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Allied Machine Original T-A Drill

The T-A drill system features high performance inserts and holders ideal for automotive holemaking applications used in manufacturing engine blocks, crankshafts, piston, and suspension parts.

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GEN2 T-A Holder With Insert

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Allied Machine & Engineering, a manufacturer of holemaking and finishing tooling systems, highlights its line of replaceable tip Original T-A drill systems, which significantly reduce downtime compared to solid tools. The T-A drill system features high performance inserts and holders ideal for automotive holemaking applications used in manufacturing engine blocks, crankshafts, piston, and suspension parts. Cost per hole using T-A drill systems can be 25-50 percent lower – or more – than other options in the marketplace.

With the T-A drill line, operators get a perfect factory-ground surface or drill point every time they insert the drill tip – with no downtime required to alter tool offsets due to regrinding operations. The replaceable tips are consistent every time, unlike variations often encountered when using drills reground by different machinists.

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Allied offers cast iron (-CI) geometries for its T-A drill that are ideal for automotive applications. Featuring lower rake angles and a tougher cutting edge to make them more resilient, the (-CI) drill tips are a good choice for blocks and heads made out of cast iron. Other application-specific drill tips are also available. Allied develops custom-configured shapes for tools, including a special form end for the end of a crankshaft.

Innovative coating options for the T-A drill include Allied’s exclusive AM200 coating, which improves performance and extends tool life. A variety of insert grades are available for automotive applications, including C3 carbide, a wear-resistant carbide offering the best life in gray cast iron and C2 carbide, a good choice for aluminum and other nonferrous applications.

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C1 options are available for steel applications using the GEN2 T-A drill, which fits into the same holder as the Original T-A and provides even better performance and longer tool life for automotive applications.

For more information: www.alliedmachine.com.

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