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Armor STC-HH20 Auto-Adjust Hold-Down Toggle Clamp, Medium-Profile

Applies fast, easy hold-down pressure—simply close the clamp and it automatically adjusts to the thickness of your workpiece!
Item #
100% of 100

Armor Auto-Adjust toggle clamps automatically adjust for different thicknesses of material, eliminating the need to readjust the clamp when changing stock. Whether you're clamping a standard piece of 3/4'' stock or a thin sheet of veneer, one flip of the lever is all it takes to secure your work. The clamp applies downward pressure, making it ideal for workbenches, jigs and fixtures—anything you would use a hold-down clamp for. When closed, it maintains a horizontal orientation so it won't obstruct your work. Clamping force is easily adjustable—simply rotate the adjustment screw to increase or decrease the pressure. Once set, it stays the same for all thicknesses—just set it and forget it. The threaded post allows additional adjustment range when needed.

  • Auto-Adjust: Armor’s Auto-Adjust technology automatically adjusts to variations in workpiece dimensions while maintaining consistent clamping pressure
  • Adjustable Clamping Pressure: The integrated adjustment screw is used to create a wide range of clamping pressures. Rotate the screw clockwise to decrease and counterclockwise to increase the clamping force
  • Strong, Lightweight: Auto Clamps are constructed of nickel plated 1050 heat-treat spring steel
  • One-Handed Operation: Armor’s Auto-Pro AutoClamps are designed for one-handed operation, a huge advantage over the competition
  • Horizontal Base Plate: Horizontal plate features adjustable mounting holes on the base plate to accommodate most standard toggle mounting patterns
  • Large Soft-Grip Handle: Features soft insets for maximum grip and comfort
(1) Armor STC-HH20 Auto-Adjust Hold-Down Toggle Clamp, Medium-Profile
More Information
Brand Armor
Manufacturer Part Number STC-HH20
Weight 0.6500
Tech Spec
  • Model No: STC-HH20
  • Opening: 0 to 13/16''
  • Adjustable Clamping Force: 25 to 250 lbs.
  • Holding Capacity: 450 lbs.
  • Total Length: 6.52''
  • Opened Height: 5.49''
  • Closed Height: 1.75''
  • Approx. Weight: 0.6 lbs.
  • Fastener: 3/16'' or M5
Clamp Pressure 450 lbs
5.0 / 5.0
1 Review
5 Stars
4 Stars
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2 Stars
1 Star
Quality tool
Haven’t had the chance to use them much but when I have used them they worked great and give great pressure with little effort on the push down of the clamp
November 3, 2019
3 months ago
Woodworking Experience:
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Why did you choose this?
Rockler Store
My husband had it on his wish list.
Elizabeth T on Dec 8, 2016
My husband had it on his wish list.
Elizabeth T on Dec 8, 2016
Where are these made?
A shopper on Sep 8, 2015
BEST ANSWER: The clamps themselves have no markings indicating where they were made. If the packaging did, I don't recall and have long since discarded it. Sorry.