General Tools #803 Brass Stair Gauge Set

The General Tools #803 is one of the most recognized brass stair gauge sets Montana contractors reach for, and it competes with two other proven options: the Empire Level 105 and the Irwin Tools 1794481.

Model numbers are worth noting when you order, so look for the General Tools 803, Empire 105, and Irwin 1794481 part numbers. These manufacturers have built their reputation on precision layout tools that Montana framers depend on for accurate stair and rafter work.

Why Brass Construction Beats Steel for Montana Work

Solid brass construction handles Montana’s freeze-thaw cycles without the rust issues that plague cheaper steel gauges. The knurled brass thumbscrews maintain their grip even when you’re wearing winter gloves on a cold morning in Kalispell. That matters when you’re setting up repetitive cuts at 15 degrees in February.

Users highlight the tool’s effectiveness in speeding up repetitive layout tasks. Common praises include the high-quality brass finish, the secure locking of the knurled screws, and the value for the price. Occasional complaints involve screws stripping if overtightened with pliers. Leave the pliers in your pouch — these knurled screws tighten adequately by hand.

The Empire Level 105 model measures 0.75” x 1.75” x 1.75” — compact enough to keep in your tool belt without the bulk. These gauges fit all standard metal framing, rafter, and carpenter squares (approx. 1/8 inch thick), which covers every framing square at Western Building Center.

Real Applications Beyond Basic Stair Layout

Stair gauges earn their keep on more than just stringers. The applications include laying out stair stringers for repetitive rise and run markings, marking rafters for angle cuts, repetitive layout on framing squares for walls, joists, and studs, serving as a fence or stop for circular saw cuts on a square, and general carpentry and framing layout.

That circular saw fence application saves serious time on repetitive cuts. Clamp your square to the lumber, set the gauge against your saw shoe, and every cut comes out identical. Works especially well for cutting blocking or cripple studs where you need dozens of identical pieces.

Installation and Setup

Select the desired measurement on the scale of the framing square. Loosen the thumbscrew on the stair gauge. Slide the gauge onto the edge of the square at the measurement point. Tighten the knurled screw by hand until the gauge is firmly locked. Repeat the process for the second gauge on the opposite arm of the square to set the rise and run angles.

Model Comparison

Brand	Model	Construction	Key Advantage
General Tools	803	Brass-plated steel / Solid brass	Affordable, widely recognized part number 803
Empire Level	105	Solid Brass	Heavy-duty construction, highly rated by professionals
Irwin Tools	1794481	Solid Brass	Lifetime Limited Warranty, premium build

The Bottom Line

Montana contractors need real manufacturers who’ve been making these tools right for decades. The Empire 105 delivers professional-grade solid brass construction. The Irwin 1794481 comes with a lifetime warranty. Both handle Montana jobsite conditions better than brass-plated alternatives.

With an average rating of 4.8 stars across 272 reviews, brass stair gauges prove their worth daily. For the price of a decent tape measure, you get precision layout tools that last decades. Just remember to hand-tighten those thumbscrews — your knuckles provide all the torque these brass threads need.

FAQ

Q: What’s included in a typical brass stair gauge set?

The set includes 2 Brass Stair Gauges and Display Packaging (usually a hanging card or plastic case).

Q: Do brass stair gauges contain lead?

Yes, they carry a California Proposition 65 Warning: Product may contain lead/brass, which are known to cause cancer or reproductive harm. Standard warning for brass products — the lead content in brass alloys triggers this requirement.

Q: Which warranty coverage should I expect?

Warranty varies by manufacturer: Irwin offers a Lifetime Limited Warranty against defects in materials and workmanship, General Tools provides retailer-specific return policy (e.g., 100% Satisfaction Guarantee), and Empire includes a 90-day return policy through major retailers like Home Depot.