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Original T-A
Original T-A
I-Beams: Original T-A® 
Code:
1008
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The Challenge
The customer drills I-beams made from A36 structural steel using a Ficep structural beam drilling machine center with mist coolant.

Tool used: YG-1 spade drill
  • Hole diameter = 0.875" ( 22.23mm)
  • Hole depth = 0.4375" (11.11mm)
  • 650 RPM
  • 0.010 IPR (0.25 mm/rev)
  • 6.5 IPM (165.1 mm/min)
  • Tool life = 20 holes
In need of improvements, the customer requested a solution that would provide more tool life from the drill inserts.
The Solution
Allied recommended the Original T-A structural steel drill.
 
Tool used: Original T-A structural steel drill insert (item 151A-0028-TW) and holder (25010H-004IS052)
  • 440 RPM
  • .010 IPR (0.25 mm/rev)
  • 4.4 IPM (111.7 mm/min)
  • Tool life = 1,500 holes
The Advantages
The Original T-A structural steel drill easily met the customer's goal.
  • Increased tool life from 20 holes to 1,500 holes
  • Reduced cost per hole from $2.02 to $0.22
  • Cost per hole savings = 89%