Apex 82501 Ball Hex Bit Socket 3/8 in Drive 5 Mm

Product Description

The APEX 82501 is a 3/8 inch drive ball hex bit socket designed for driving internal hex fasteners in tight or angled spaces. Built on a heat-treated alloy steel base socket, it accepts an S2 steel ball end hex bit that delivers full torque transfer and resists wear under repeated use. The ball end geometry allows up to a 25-degree entry angle, making it practical for fasteners that are recessed, obstructed, or slightly off-axis. At 0.1 pounds and 1.654 inches in length, this is a compact tool suited for bench work and field service alike. Measured in metric sizing at 5 MM, it fits the common standard used across HVAC equipment panels, pump assemblies, and electrical enclosures.

This socket is used wherever a 3/8 inch drive ratchet or extension is paired with metric internal hex fasteners. Typical applications include equipment access panels, motor mounting hardware, and component brackets in residential and light commercial mechanical systems. The 5 MM size is a frequently encountered metric hex specification across imported and domestic equipment. The compact length suits confined spaces where a standard bit driver or L-key cannot achieve proper engagement angle.

Key Features

• Ball end hex bit allows up to 25-degree entry angle for off-axis fastener access
• S2 steel bit construction for high-strength, wear-resistant performance
• Heat-treated alloy steel base socket for durability and long service life
• 3/8 inch square drive compatible with standard ratchets and extensions
• 5 MM metric sizing at 1.654 inches overall length

Compatibility

Designed for use with 3/8 inch drive ratchets, extensions, and torque wrenches requiring a 5 MM metric ball hex bit socket.

Installation Notes

Ensure the drive tool and socket are fully engaged before applying torque to avoid rounding the fastener. Power down or de-energize any equipment before accessing fastener-secured panels or components. Ball end sockets are intended for driving and light-torque applications at angle; for final seating at full torque, align the socket straight with the fastener axis. Inspect the bit tip for wear before each use and replace if deformation is present.

Technical Specifications

• Drive Size: 3/8 inch
• Bit Type: Ball Hex
• Bit Size: 5 MM
• Measurement Standard: Metric
• Overall Length: 1.654 inches
• Weight: 0.1 pounds
• Base Socket Material: Heat-Treated Alloy Steel
• Bit Material: S2 Steel
• Sold As: Each
• UPC: 099575825019

Standard Information

• Brand: APEX
• Manufacturer Part Number: 82501