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Original T-A
Valve Body: Original T-A® 
Code:
1016
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The Challenge
The customer manufactures valves for the oil field industry using a custom-made spotting drill machine running with 60 PSI water soluble oil coolant. They are machining a valve body made from WCC cast steel.

Tool used: Guhring 90° spot drill
  • Hole diameter = 1.2500″
  • Hole depth = 0.375″
  • 430 RPM
  • 141 SFM
  • 0.005 IPR
  • 2.15 IPM
  • Tool set up time = 29 minutes
  • Cycle time = 10.5 seconds
  • Tool life = 75 holes (required 8 regrinds)
In order to improve the production process, the customer needed to eliminate the costly tool regrinds and reduce the large amount of tool set-up time.
The Solution
Allied recommended the Original T-A drill.

Tool used: Original T-A insert with 90° Spot and Chamfer geometry (item 152T-0108-SP) with holder (020128-8)
  • 430 RPM
  • 141 SFM
  • 0.005 IPR
  • 2.15 IPM
  • Tool set up time = 4 minutes
  • Cycle time = 10.5 seconds
  • Tool life = 138 holes (eliminated regrinds)
The Advantages
The Original T-A eliminated tool regrinds, reduced tool set-up time, and increased the tool life.
  • Eliminated tool regrinds
  • Decreased set-up time by 86%
  • Total cost savings = $6,778 or 46.6%