Malco hhd3t 3/8 Inch Connext Magnetic Hex Driver

Product Description

The MALCO hhd3t is a magnetic hex driver designed for fastening applications in sheet metal and HVAC work. It features a 3/8-inch hex drive opening and an overall length of 4.125 inches, with a 2.25-inch magnetic hex bit included. The magnetic nose holds fasteners securely in place during driving, reducing dropped screws and improving single-hand operation on the job. The driver is built for use with Type A hex head screws and Malco Zip-In screws, making it a purpose-built tool for duct installation and light sheet metal assembly. Licensed HVAC technicians and sheet metal mechanics are the primary users of this driver.

The hhd3t is suited for residential and light commercial HVAC installation work, particularly where duct sections are joined using Zip-In or Type A hex head fasteners. The Connext magnetic design allows the technician to seat and drive fasteners in tight spaces or at awkward angles without a second hand to stabilize the fastener. The included 0.25-inch magnetic hex bit attaches via a standard quarter-inch hex connection, compatible with most power drills and impact drivers used in the trade.

Key Features

• 3/8-inch hex drive opening for Type A hex head screws and Malco Zip-In screws
• Magnetic nose retains fasteners during placement and driving
• Overall length of 4.125 inches for reach in confined duct work
• Includes a 2.25-inch magnetic 0.25-inch hex bit
• Connext design compatible with standard quarter-inch hex power tool chucks

Compatibility

Designed for use with Type A hex head screws and Malco Zip-In screws. Compatible with standard 0.25-inch hex chuck drills and impact drivers commonly used in sheet metal and HVAC installation.

Installation Notes

This tool is used by sheet metal mechanics and HVAC installers during duct assembly and connection work. No power shutoff is required for tool use, but all electrical disconnects should be locked out before working inside air handling units or near live components. Use appropriate PPE when working with sheet metal edges. Verify fastener size matches the 3/8-inch hex opening before driving to avoid cam-out or fastener damage.

Technical Specifications

• Product Type: Hex Driver
• Hex Drive Size: 3/8 inches
• Overall Length: 4.125 inches
• Included Bit Shaft Length: 2.25 inches
• Included Bit Drive Size: 0.25 inches hex

Standard Information

• Brand: MALCO
• Manufacturer Part Number: hhd3t