Adjustable Wrench STANLEY T828420 — STMT82842-0, adjustable jaw tool

STANLEY T828420 (model STMT82842-0) is an adjustable wrench designed for gripping and turning a range of nuts and bolts. The tool features a sliding adjustable jaw and a single-hand adjustment mechanism that allows rapid size changes, making it suitable for workshop maintenance and field repairs. The handle is shaped for secure grip and controlled torque transfer during tightening or loosening operations.

Advantages

The adjustable jaw provides a wide clamping range so one tool covers multiple fastener sizes, reducing the need for several fixed wrenches. The single-hand adjustment mechanism enables quick on-the-fly resizing and improves efficiency during repetitive tasks. The contoured handle offers comfort and better control, while the robust construction ensures reliable performance under typical workshop and maintenance conditions.

Suitable for

• General repair and maintenance
• Assembly and disassembly of machinery and equipment
• Plumbing work involving pipe fittings and couplings
• Automotive minor repairs and adjustments
• Workshop and on-site service tasks

Key specifications

• Type: adjustable wrench with sliding jaw
• Adjustment: single-hand thumbwheel or similar quick-adjust mechanism
• Applications: nuts, bolts and fittings of varying sizes
• Handle: ergonomically contoured for grip and torque control
• Construction: forged or hardened steel body for durability

How to use

Select the wrench and position the adjustable jaw to approximate the fastener size using the thumbwheel. Place the wrench with the fixed jaw against the stationary side of the fastener and the adjustable jaw on the turning side. Apply steady pressure in the required direction while maintaining a firm grip on the handle. Readjust the jaw as needed for different fastener sizes and avoid using the tool on rounded or severely damaged heads where a socket or boxed spanner is more appropriate.

Usage recommendations

Inspect the jaw surfaces before use to ensure a clean, secure grip on the fastener. Use the correct side of the tool to minimize slippage and avoid applying impact force or using the wrench as a hammer. Store the wrench in a dry place to prevent corrosion and periodically check for wear or damage to maintain safe operation.