Proto J1218MASD-TT Combination Wrench 18 Mm

Product Description

The PROTO J1218MASD-TT is a 18 mm combination wrench built for professional tradespeople who need a reliable, ASME B107.100-compliant hand tool on the job. It features a 15-degree offset head angle on both the box and open ends, a straight handle, and a satin finish on steel construction. At 10.69 inches overall length and 0.41 pounds, it balances reach and control in tight spaces. The tether-capable design makes it appropriate for elevated work, confined-space applications, or any environment where dropped-tool protocols are enforced.

This wrench is suited for mechanical, industrial, and maintenance trades including HVAC service, pipefitting, millwright work, and general mechanical assembly. The 12-point box end provides good contact on standard hex fasteners and allows repositioning in restricted swing areas. The satin finish reduces glare in field conditions. It is not rated for non-sparking applications and does not include ratcheting or reversing functionality.

Key Features

• 18 mm combination wrench with 15-degree offset head angle for clearance over fastener heads
• 12-point box end allows use in areas with limited wrench swing
• Tether-capable design supports dropped-tool prevention programs on elevated or confined worksites
• Corrosion-resistant steel construction with satin finish
• Meets ASME B107.100 standard for combination wrenches
• Straight handle, 10.69 inches overall length, 7/16 inch head thickness

Compatibility

Designed for use on 18 mm hex fasteners in standard mechanical and industrial applications. Compatible with tether attachment systems requiring a tether-capable wrench body.

Installation Notes

This wrench is a hand tool intended for use by qualified mechanical tradespeople including HVAC technicians, pipefitters, and industrial maintenance personnel. Ensure the correct jaw size is fully seated on the fastener before applying force to avoid fastener rounding or tool slippage. When used in elevated or confined-space environments, attach an appropriate tether lanyard to the tether point before use in accordance with your site dropped-object prevention plan. Inspect the tool for cracks or deformation before each use and remove from service if damage is found.