Apex 85399 S-shape Ratcheting Wrench Set 12 Point Sae

Product Description

The APEX 85399 is a 4-piece SAE s-shape double box ratcheting wrench set designed for professional use in confined and obstructed work areas. Each wrench features two ratcheting 12-point box ends and a half-moon offset profile that routes around obstacles where a standard wrench cannot reach. The 0-degree offset on both ends maximizes fastener access in tight spaces, and the ratcheting mechanism requires as little as 5 degrees of arc to move a fastener compared to 30 degrees for conventional wrenches. Constructed from alloy steel with a full-polish chrome finish, these wrenches are built for durability in demanding trade environments.

This set is suited for automotive, mechanical, and general maintenance technicians who routinely work in tight engine bays, equipment panels, or structural assemblies where straight wrenches cannot seat properly. The s-shape geometry provides clearance over adjoining hardware, making it a practical choice for plumbing rough-in, HVAC equipment fastening, and mechanical contracting work. The set covers four SAE size pairs: 3/8 x 7/16, 1/2 x 9/16, 5/8 x 11/16, and 3/4 x 7/8.

Key Features

• 5-degree arc swing required to advance fastener, versus 30 degrees for standard box wrenches
• S-shape half-moon profile allows access around obstructions and adjacent components
• Dual ratcheting 12-point box ends on every wrench in the set
• 0-degree offset on both ends for maximum clearance in restricted spaces
• Off-corner loading geometry reduces fastener rounding under torque
• Alloy steel construction with full-polish chrome finish for corrosion resistance

Compatibility

Designed as a general-purpose SAE ratcheting wrench set compatible with standard 12-point SAE hex fasteners across residential, commercial, and light industrial maintenance applications.

Installation Notes

These wrenches are used by HVAC technicians, plumbers, electricians, and mechanical contractors for fastener work during equipment installation and service. Ensure the wrench box end is fully seated on the fastener before applying torque to prevent slippage. Always de-energize or shut off the relevant system before performing fastener work on energized or pressurized equipment. Inspect the ratchet mechanism for smooth engagement before each use.

Technical Specifications

• Set Piece Count: 4 pieces
• Drive Type: Double box ratcheting, 12-point
• Size Standard: SAE
• Included Sizes: 3/8 x 7/16, 1/2 x 9/16, 5/8 x 11/16, 3/4 x 7/8
• Arc Swing: 5 degrees minimum
• Offset: 0 degrees both ends
• Material: Alloy steel
• Finish: Full-polish chrome
• Weight: 2.4 pounds
• UPC: 082171853999

Standard Information

• Brand: APEX
• Manufacturer Part Number: 85399