4TEX Drill
Truck Arm Component: 4TEX® Drill 
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The Challenge

The right tool can save you some big bucks.

Sometimes, you set out with the goal to simply improve your operation processes. But if you can find some big cost savings along the way, the mission becomes an even greater success. Our customer was machining truck arm components from austempered ductile iron, a material with high abrasiveness and inconsistent hardness. The application was challenging, and the customer wasn’t happy with the 190 holes their drill achieved before the inserts would ultimately fail.

The customer wanted to test the 4TEX Indexable Carbide Drill using the “K” geometry with AM480 coating designed specifically for wear-resistance in cast iron material applications. To the customer’s delight, the 4TEX obliterated the tool life, increasing from 190 to 800 holes (a 320% increase). And with no tool failure, the 4TEX was already the clear choice for the customer moving forward.

However, the 4TEX provided another major benefit for the customer. They had been using a high penetration drill with an expensive insert. The 4TEX used two indexable inserts, and by using all four sides of each insert, there was a 97% decrease in the customer’s cost per hole.

In the beginning, the customer wanted to improve their tool life and eliminate the tool failures. In the end, the 4TEX easily handled those goals, all while saving the customer a significant amount of money in the process. The right tool shouldn’t just improve your process; it should save you money, too.

Find an Allied tooling distributor near you.

Product: 4TEX Drill
Objectives: (1) Increase tool life
(2) Eliminate tool failure
Industry: Military/Defense
Part: Truck Arm Component
Material: Ductile Cast Iron
Hole Ø: 0.866" (22mm)
Hole Depth: 1.050" (82.55mm)

The Solution
4TEX Indexable Carbide Insert Drill
  • Drill holder, 2xD length:  D2072200M-100F
  • Drill inserts, K geometry (cast iron):  4T-070305-K
Measure Replaceable Insert Drill 4TEX Drill
RPM 794 1764
Speed Rate 180 SFM (54.864 M/min) 400 SFM (121.92 M/min)
Feed Rate 0.014 IPR (0.3556 mm/rev) 0.0035 IPR (0.0889 mm/rev)
Penetration Rate 11.12 IPM (282.448 mm/min) 6.18 IPM (156.972 mm/min)
Tool Failure Yes No
Cycle Time 5 sec 10 sec
Tool Life 190 holes 800 holes
4TEX offered 97% cost per hole decrease over the competitor tooling.
The Advantages
The 4-sided indexable inserts with wear-resistant coating provided:
  • 97% cost per hole decrease
  • Increased tool life
  • Eliminated tool failure
  • Worry-free machining