Irwin Industrial Tools
585-10239 | Unibit® High Speed Steel Fractional Self-Starting Step Drill
Item #101694003

Irwin Industrial Tools
585-10233 | Fractional Self Starting/Hole Enlarging Step Bit
Item #101666648

Irwin Industrial Tools
585-11104 | Unibit® High Speed Steel Metric Self-Starting Step Drill
Item #101668685

Irwin Industrial Tools
585-10221 | Unibit® High Speed Steel Fractional Hole Enlarging Step Drill
Item #101666486

Irwin Industrial Tools
585-10310 | Unibit® High Speed Steel Fractional Self-Starting Step Drill
Item #101665525

Irwin Industrial Tools
585-10232 | Fractional Self Starting/Hole Enlarging Step Bit
Item #101656318

Irwin Industrial Tools
585-10231 | Fractional Self Starting/Hole Enlarging Step Bit
Item #101638565

Irwin Industrial Tools
585-15104 | Unibit® Fractional Titanium Nitride Coated Step Drills
Item #101656342

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