ASC 320
Military Tank Ring: ASC 320® 
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The Challenge

A contract machine shop that specializes in turning and drilling is producing components for a large manufacturer of military tanks. They are using a Quick Drill CNC VMC with water soluble coolant. The part being machined is a large stainless steel ring.

The customer wanted to lower their cost of production.

The ASC 320 drill increased the tool life, reduced the cycle time, and produced a superior hole quality while lowering the overall cost of production.


Product: ASC 320
Objective: Decrease production cost
Industry: Military/defense
Part: Large rings for military tanks
Material: Stainless steel
Hole Ø: 0.5312" (13.492 mm)
Hole Depth: 5.0" (127 mm)

The Solution
The ASC 320
  • 390E05312A21M
Measure Competitor ASC 320
RPM 431 971
Speed 60 SFM (18.288 M/min) 135 SFM (41.148 M/min)
Feed Rate 0.008 IPR (0.203 mm/rev) 0.006 IPR (0.152 mm/rev)
Penetration Rate 3.45 IPM (87.63 mm/min) 5.82 (147.828 mm/min)
Cycle Time 10 min 8.4 sec 51.5 sec
Tool Life 4 holes 228 holes

The Advantages
The ASC 320 provided:
  • 56% tool life increase
  • Decreased cycle time
  • Production cost savings