TrueGrip™ — Lock Any Corner from 10° to 180° Dead-On Every Time
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Lock a True 90° (or Any Angle) Without a Second Pair of Hands
Whether you're building picture frames in the garage or welding a square steel frame, TrueGrip™ holds both pieces dead-on while you fasten them. Set the V-jaw, tighten the hand wheel, and your corner stops shifting — so the joint you glue, screw, or weld is the joint you actually planned.
Stop Fighting Corners That Slip the Second You Let Go
You line it up, hold it with your knee, reach for the screw — and the whole thing slides out of square. Spring clamps walk. F-clamps only pull flat. Cheap plastic corner jigs flex under any real pressure, so you end up with gaps in the miter and a corner that's "close enough" instead of right. TrueGrip™ clamps the angle itself, not just the surface, so it can't drift while you work.
➤ Holds a Perfect 90° (or Anything from 10° to 180°): Pick the fixed 90° style for square frames and boxes, or the adjustable swivel head to dial any angle between 10° and 180° and lock it with the included-size hex wrench.
➤ Aluminum Die-Cast Body, Not Bendy Plastic: The clamp arms are die-cast aluminum — high dimensional accuracy, hard surface, won't flex or crack like the plastic corner jigs that warp after two uses.
➤ Frees Up Your Other Hand: Once the jaws bite, the workpiece stays put. No knee-pinning, no "third hand," no holding your breath while you drive the first screw.
The Trapezoidal Screw That Bites and Won't Back Off
Each arm rides on a trapezoidal A3 steel screw — the same flat-threaded screw used on bench vises because it grips hard and resists loosening under load. Twist the wheel right and the jaw swivels down to bite; twist left and it backs off to release. Your workpiece gets handled with two fingers, not a fight.
Ordinary clamps clamp against a surface and let the angle wander. TrueGrip™'s V-body sets the angle first and the screws lock both faces into it — so the corner holds at the angle you set, through drilling, gluing, screwing, or welding.
Why Hobby Woodworkers and Weekend Fabricators Keep Reaching for TrueGrip™
Tobias S. said: "I almost didn't buy it — figured it was another plastic corner gadget. It's solid aluminum and the screws actually bite. First time my picture-frame corners came out with no gaps. Wish I'd had this for my last three builds." If you've ever glued up a frame and watched it slide out of square, that's the moment this fixes.
Square Corners, Zero Drift, Less Cursing
✓ Doesn't Shift When You Glue Up: The locked V-jaw keeps both pieces in place while the glue grabs, so the corner sets square instead of creeping.
✓ One Tool, Wood or Metal: Same clamp handles hardwood frames, steel tube, and aluminum profile up to a 50 mm jaw opening.
✓ Built to Outlast the Project: Die-cast aluminum arms and steel screws mean no flex, no cracking, no "buy it again next year."
Square Corners in 3 Steps, Hex Wrench Optional
Step 1: Choose your angle — drop in the fixed 90° style, or set the swivel head anywhere from 10° to 180° and lock it with the hex wrench.
Step 2: Seat both workpieces into the V-jaws so they meet at the corner.
Step 3: Tighten each hand wheel until the jaws bite — then fasten, glue, or weld with both hands free.
| Why TrueGrip™ Stands Apart | TrueGrip™ Clamp | Traditional Clamps |
|---|---|---|
| Locks the Angle, Not Just the Surface | Fixed 90°, or 10°–180° adjustable | Pulls flat only — angle drifts |
| Works on Wood, Steel & Aluminum Profile | ✅ | ❌ |
| Die-Cast Aluminum, Won't Flex or Crack | ✅ | ❌ (plastic jigs warp) |
Specs That Matter Before You Clamp
- Style Options: Fixed 90° (≈277 mm wide × 123 mm) or adjustable 10°–180° swivel (≈140 mm tall × 120 mm)
- Body: Die-cast aluminum arms with trapezoidal A3 steel screws (M8 / M10)
- Jaw Capacity: Up to 50 mm opening, 16 mm jaw depth, 40 mm screw reach
- Compatible With: Wood, steel tube, square tubing, and aluminum profile frames
- Package Includes: TrueGrip™ clamp in your chosen 90° or 10°–180° style
Your Questions, Clearly Answered
Should I get the 90° or the 10°–180° style?
Pick 90° if you mostly build square frames, boxes, and right-angle corners. Pick the 10°–180° swivel if you need to lock odd angles — it sets anywhere in that range and holds with the hex wrench.
Will it hold up on metal and welding work?
Yes. The die-cast aluminum arms and A3 steel screws grip steel tube and aluminum profile, not just wood, so it stays put while you tack or fasten the joint.
How thick a piece can it clamp?
Each jaw opens up to about 50 mm with a 16 mm jaw depth, so it fits most frame stock, tube, and board thicknesses you'd corner-join by hand.
Will it slip once it's tightened?
The trapezoidal flat-thread screws bite and resist backing off under load, so once the wheels are snug the jaws stay locked — no creep mid-glue-up.
Square Corners, or Your Money Back
Clamp it, build your corner, and check it with a square. If TrueGrip™ doesn't hold your joint dead-on the way these arms are built to, send it back for a full refund — no "close enough" corners, no risk to you. Pick your 90° or 10°–180° style above and get your next build right the first time.
What our customers have to say:
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