Utility Poles: T-A Pro® 
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The Challenge

Good, Better, Best.

You can have a process that gets the job done, but is it the best or just simply good? Our customer who machines iron utility poles was previously using tooling that left them wishing for more consistency in their process.

Needing an increased tool life and better performance, the customer tested Allied’s T-A Pro drill. Running the drill dry and using the “K” ISO-specific cast iron insert geometry—developed for maximum tool life, reduced exit burr, and improved hole finish—they were able to significantly increase their tool life and penetration rate.

On top of the increased tool life, the T-A Pro had a decreased cycle time reducing cost per hole nearly 80%. As Lincoln Chafee once said, “Trust is built with consistency,” and consistency and dependabilility are exactly what the T-A Pro was able to bring our customer.

The success of the T-A Pro in this application is just another example of why the T-A Pro is more than just a good drill.

If you are looking for more than just getting the job done, give us a call, and we will help you find the right solution.

Product: T-A Pro drill
Objective: Increase tool life
Industry: General machining
Part: Utility poles
Material: Ductile cast iron
Hole Ø: 0.5938" (15.08mm)
Hole Depth: 0.7000" (17.78mm)

The Solution
T-A Pro High Penetration Replaceable Insert Drill
  • Drill holder, 3xD length:  HTA0B03-075F
  • Drill inserts, K geometry (cast iron):  TAK0-15.08
Measure Competitor Drill T-A Pro Drill
RPM 1950 2220
Speed Rate 303 SFM (92.35 M/min) 345 SFM (105.16 M/min)
Feed Rate 0.010 IPR (0.25 mm/rev) 0.011 IPR (0.28 mm/rev)
Penetration Rate 19.50 IPM (495.3 mm/min) 24.42 IPM (619.8 mm/min)
Total Part Cycle Time 2.148 sec 1.721 sec
Tool Life 225 holes 650 holes
T-A Pro offered 77.95% cost per hole savings over the competitor tooling.

The Advantages

The ISO-specific TiAlN coated T-A Pro insert provided:

  • Increased tool life
  • Decreased cycle time
  • Decreased cost per hole
  • Increased penetration rate