Hole Punch and Flange Air Tool – 5/16 Inch Hole

This versatile design allows the operator to use just one tool for making both holes and flanges in 22 to 18 gauge (0.76 to 1.22 mm) automotive grade, mild steel.  Reduce metal fabrication time by half!  Use one side of the tool head to punch a clean, flat, burr-free 5/16 in (8 mm) diameter hole; use the other side of the tool head to form a nominal 7/16 in (11 mm) Long, 1 in (25.4 mm) Wide and .040 in (1 mm) Deep offset flange to accommodate no-bump lap welds.  The head also rotates for ease of use.  The powerful, lightweight pneumatic motor is compatible with most existing shop air supplies and a quick-connect hose adapter equipped with a male 1/4-inch pipe thread.  Every pull of the motor lever delivers a powerful single punch or single flange crimp with precision control.  A cushioned grip around the all-steel motor housing offers comfort and sure gripping while operating the tool.  The punch, die and flanging head are made of hardened steel to ensure long dependable service.


  • 22 to 18-Gauge Steel Capacity
  • Punches 5/16 in (8 mm) Holes
  • Forms Flanges for No-Bump Lap Welds
  • Precision Controlled Pneumatic Operation
  • Compatible with Existing Air Supplies


Catalog #DescriptionAir RequirementsPiston Stroke in. (mm)Punch Dia. in. (mm)Flange Dimensions in. (mm)Weight lbs. (kg)
PF1 EVHole Punch and Flange Tool4 CFM (133 L/Min) / 90 PSI (6.2 Bar)5/32 (4)5/16 (8)7/16 x 1 x .040 (11 x 25.4 x 1)3.09 (1.4)


Does the tool need to be oiled daily?
For best performance the tool should be oiled before use.

What Kind of oil does it use?
Standard air tool oil

Can the tool be set to make a deeper flange?
No, the tool is not adjustable.

Is the punch replaceable?



My Review for Hole Punch and Flange Air Tool – 5/16 Inch Hole

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Peter Siegfried

Five Stars
Works great every time. Good size hole to spot weld and great crimped edge. Great time saver!