Sk 19748 Ball Hex Bit Socket Set 3/8 Drive 8 Pc Metric

Product Description

The SK 19748 is an 8-piece long ball hex bit socket set designed for 3/8 inch drive applications. It covers metric hex sizes from 3 mm to 10 mm, giving technicians a full range of fastener engagement in a single kit. The ball hex design allows off-axis engagement, useful when working in tight or angled spaces where straight alignment is not possible. Constructed from steel, these sockets are suited for routine service work in HVAC, plumbing, and general mechanical trades where hex-head fasteners are common on equipment panels, brackets, and components.

This set is intended for professional use in residential and commercial service environments. It fits 3/8 inch drive ratchets, extensions, and flex handles already common in most service kits. The 8 individual sizes — 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, and 10 mm — cover the metric hex fasteners found on equipment access panels, motor mounts, valve bodies, and similar assemblies. The long ball hex bit design provides added reach for recessed fasteners.

Key Features

• Ball hex bit design allows up to 25 degrees of off-axis engagement for angled fastener access
• 3/8 inch drive fits standard ratchets, breaker bars, and extensions
• 8-piece set covers 3 mm through 10 mm metric hex sizes
• Long bit length provides extra reach for recessed or deep-set fasteners
• Steel construction for durability under repeated torque application
• Compact set weight of 0.77 pounds for easy transport in a service bag or kit

Compatibility

Designed for use with 3/8 inch drive ratchets and accessories. Fits metric hex-head fasteners from 3 mm to 10 mm as found on a wide range of HVAC, plumbing, and mechanical equipment.

Installation Notes

Use with a 3/8 inch drive ratchet or torque wrench appropriate for the fastener specification. Ensure the socket is fully seated on the fastener before applying torque to avoid rounding hex heads. The ball hex design is intended for moderate-torque applications — for high-torque fasteners, use a standard straight hex socket to maximize engagement. Inspect sockets for wear or deformation before each use.