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Product Details

High Strength Knobs

Optional new high-strength steel formula knobs
Offer More Holding Power than Ever Before

Tooling Technology is always on the cutting edge of metallurgical science and innovation. This special new steel formula in our High-Strength Quick-Change Knobs offers more holding power and higher tensile limits for the most demanding industrial applications.

  • PD500 Mega Knob = 2x Stronger! 
  • Model PD438 Knob = 3.5x Stronger!
  • PD250 Micro Knob = 4x Stronger!
  • PD375 Mini Knob = 5x Stronger!*
    (* With New High-Strength PD375FHS Cylinder Lock)