Allied Machine Offers Original T-A® Drill Ideal for a Range of Automotive Applications

Reduces downtime and lowers cost per hole

Allied Machine & Engineering, a leading 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.
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 Allieds 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.
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.

Featured Product

T.J. Davies' Retention Knobs

T.J. Davies' Retention Knobs

Our retention knobs are manufactured above international standards or to machine builder specifications. Retention knobs are manufactured utilizing AMS-6274/AISI-8620 alloy steel drawn in the United States. Threads are single-pointed on our lathes while manufacturing all other retention knob features to ensure high concentricity. Our process ensures that our threads are balanced (lead in/lead out at 180 degrees.) Each retention knob is carburized (hardened) to 58-62HRC, and case depth is .020-.030. Core hardness 40HRC. Each retention knob is coated utilizing a hot black oxide coating to military specifications. Our retention knobs are 100% covered in black oxide to prevent rust. All retention knob surfaces (not just mating surfaces) have a precision finish of 32 RMA micro or better: ISO grade 6N. Each retention knob is magnetic particle tested and tested at 2.5 times the pulling force of the drawbar. Certifications are maintained for each step in the manufacturing process for traceability.