Snap-on TEC50LA Torque Wrench, U.S./Metric Light Signal Torqometer, 3/8″ Drive, 600 in-lb / 700 kg·cm

Description

Concert stages, trade show booths and theater grids go up in a few hours, then hang tons of lights and speakers over people. Rigging crews build them from aluminum truss, clamps and steel hardware, often in near darkness. The Snap-on TEC50LA torque wrench fits that job, because a lamp flashes when the bolt reaches its target. Its dial also carries both inch-pounds and kilogram-force centimeters.

Backstage light, clear signal

In practice, show crews often work under blackout or with only a head torch. Snap-on’s Signal models use a built-in light that flashes at the targeted torque. So a rigger on the TEC50LA can keep both eyes on the clamp and still know when to stop.

TEC50LA catalog row

This code has no trailing C. Snap-on’s catalog says a C on the stock number orders the certificate of calibration model, so ask Lost in HCM what paperwork ships with the TEC50LA.

Rigging hardware for the Snap-on TEC50LA torque wrench

• Clamp and coupler bolts where the hardware maker gives a torque value.
• Ground support tower base and outrigger bolts.
• Motor hoist bracket and beam clamp fasteners.
• Speaker fly frame and lighting bar hardware.

Many truss systems join with conical connectors and pins rather than torqued bolts. In those cases, follow the truss maker’s method. Use the wrench only where a printed value applies.

Why kg·cm and in-lb share one TEC50LA dial

Touring gear arrives from Japan, Europe and the United States, and each maker prints torque its own way. For example, a Japanese hoist manual may list kgf·cm, while a U.S. clamp sheet gives in-lb. Snap-on’s U.S./metric table puts both scales on the TEC50LA, so the crew skips the math mid-build. Note that the metric side reads kg·cm, not N·m.

Grade and lower limit

Lost in HCM lists the TEC50LA under Combination US/Metric Reading/Standard 2% Accuracy. By Snap-on’s definition, the Standard grade stays within 2% of reading between 20% of full scale and full scale. On this dial, the band starts at 120 in-lb or 140 kg·cm. Lighter fasteners, such as fixture yoke screws, call for a smaller tool.

Road case care

Pack the Snap-on TEC50LA torque wrench in its PB9 case inside the tool road case, padded against drops. Also keep it off the truck floor, where vibration and haze fluid residue build up. Plus, tether it whenever you work at height. Never use it to break a seized nut, and schedule recalibration with an outside lab between tours.

Order the Snap-on TEC50LA torque wrench

Event production firms, venue technical teams and staging rental houses can source this wrench from Lost in HCM, the SMK Vietnam partner. Before the next season of shows, request a quote from Lost in HCM. Then check our torque wrenches page for larger and smaller sizes, or visit snapon.com. To ask about a full rigging kit, contact SMK Vietnam.

Rigging crew questions about the TEC50LA

How do 600 in-lb and 700 kg·cm compare in N·m?

Both land near 68 N·m. So the TEC50LA suits mid-size hardware rather than large structural bolts.

Does it replace a truss maker’s assembly method?

No. Use the TEC50LA only where the hardware maker prints a torque value.

Is a certificate included?

No C suffix appears on the TEC50LA code, and the source lists no certificate. Lost in HCM can confirm what comes in the box.