Stanley 50-in. Extra Large Trigger Clamp (FMHT83283)

Key Features
600 lb Clamping Force
The clamp holds 600 lb of sustained pressure, enough to pull glue joints tight and keep parts from creeping while you work.
One-Handed Trigger
Squeeze the pistol grip to close the jaws and hit the quick-release lever to let go, so your other hand stays on the workpiece.
Clamp or Spread
The quick-change jaw flips without tools, turning this trigger clamp into a spreader for pushing assemblies apart.
Non-Marring Pads
Removable pads protect finished faces and soft woods from jaw marks.
Overview
The Stanley 50-in. Extra Large Trigger Clamp (FMHT83283) is a one-handed bar clamp that opens to 50" and closes with a squeeze of the pistol grip. This is a trigger clamp designed for woodworking glue-ups, assembly, and holding work during cutting, drilling and fastening. The clamp delivers up to 600 lb of sustained clamping force.
Throat depth is 3-5/8", measured from the bar to the center of the jaw pad. That reach lets the jaws grab farther in from the edge of a panel or frame, which matters on wide stock and face frames.
The I-beam bar has a black oxide finish for corrosion resistance, and the I-beam profile adds rigidity so the bar resists flexing when you crank down hard on long assemblies.
Pull the movable jaw off and reinstall it on the opposite end of the bar and the clamp becomes a spreader. Use it to push apart racked frames, separate glued parts, or hold a cabinet side out to final width.
Removable non-marring pads cover the jaws so finished surfaces, veneers and softwoods come out without dents. Pop them off when you want more bite on rough stock.
This size is the heavy-hitter for big case work, tabletops, and jobsite tasks where you need serious holding power across a long span. Woodworkers, cabinetmakers, remodelers and serious DIYers will all put it to work.
Hold It While You Work
Trigger clamps free up your second hand: set the jaw, squeeze, and get back to the cut or the glue-up.
Opens to 50"
3-5/8" throat depth
Release in an Instant
The quick-release lever drops clamping pressure immediately and lets the jaw slide freely for the next setup.
One-handed release
Fast jaw repositioning
Protect the Finish
Non-marring pads keep the jaws from denting finished or soft surfaces.
Removable pads
Durable black oxide I-beam bar
Key Specifications
Clamp Type
Trigger Clamp (One-Handed Bar Clamp)
Sustained Clamping Force
600 lb
Maximum Opening
50"
Throat Depth
3-5/8"
Overall Length
59-11/16"
Bar
Black Oxide I-Beam Steel Bar
Jaw Pads
Removable, Non-Marring
Converts to Spreader
Yes, Quick-Change Jaw
Color
Black
Built For
Woodworking
Cabinetmaking
Carpentry
Remodeling
Furniture Building
DIY / Hobbyist
Pro Tip
To spread instead of clamp, pull the sliding jaw off the bar, flip it, and slide it back on from the other end so the pads face outward. It is the quickest way to push a racked cabinet back to square.
Tool Nut's Take
Big Span, Big Squeeze
The Stanley 50-in. Extra Large Trigger Clamp gives you fast, one-handed clamping with 600 lb of hold and pads that keep your work clean.
Who it's for: Pros and serious woodworkers who need maximum hold on wide glue-ups and big assemblies.
Why it stands out: The flip-jaw spreader function and rigid I-beam bar.
Worth knowing: Buy them in pairs or more; even clamping on both sides of a panel keeps it flat.
Common Questions
How wide does the Stanley 50-in. Extra Large Trigger Clamp open? It opens to 50" between the jaws.
Can I use it as a spreader? Yes. The quick-change jaw flips to the opposite end of the bar without tools.
Will it mark my workpiece? Removable non-marring pads cover the jaws to protect finished and soft surfaces.