Onsite 21 Piece ½” Drive Socket Set

Onsite 21 Piece 1/2″ Drive Socket Set

Onsite 21 Piece 1/2″ Drive Socket Set – Heavy-Duty Metric and SAE Mechanical Repair Kit

The Onsite 21 Piece 1/2″ Drive Socket Set (Part No. 734221) is a professional-grade kit built for strength, durability, and versatility in demanding mechanical applications. Centered around a robust 1/2″ drive reversible ratchet, this set is designed to tackle high-torque fasteners found in automotive, machinery, and industrial repair. The sockets are crafted from high-quality steel and finished with a chrome plating for superior resistance to rust and corrosion. The set is highly comprehensive, including a total of 20 sockets covering the most popular sizes in both the SAE (Imperial) and Metric measuring systems. This dual-system coverage ensures you have the right tool for virtually any common bolt or nut encountered on vehicles or equipment.

Key Benefits

• Dual Measurement System: Includes both 10 SAE and 10 Metric sockets for maximum coverage.
• Heavy-Duty 1/2″ Drive: Provides the necessary leverage and strength for high-torque applications.
• Corrosion Resistance: Durable chrome-plated finish ensures a long tool life and easy cleaning.
• Complete Set: 21 pieces provide all the essentials for most common mechanical tasks.
• Convenient Storage: Comes organized on a durable holder with a carry handle for portability and organization.

Technical Specifications

• Part Number: 734221
• Quantity: 21 Pieces
• Drive Size: 1/2″
• Socket Material: Chrome Vanadium Steel (Implied by finish and grade)
• Finish: Chrome Plated, Polished
• SAE Socket Sizes: 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″, 15/16″
• Metric Socket Sizes: 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 17mm, 19mm, 22mm, 24mm
• Components: 1 x 1/2″ Drive Ratchet, 20 x 1/2″ Drive Sockets

Perfect For

• Full-service automotive repair, including engine work and chassis components.
• Maintenance and repair of heavy equipment and agricultural machinery.
• Industrial assembly and disassembly work.
• Professional mechanics, technicians, and serious DIY enthusiasts.
• Any application requiring strong, reliable fastener tools.

Application Instructions

• Selection: Select the correct size socket (SAE or Metric) that fits snugly over the fastener head.
• Connection: Snap the selected socket firmly onto the 1/2″ drive ratchet head.
• Operation: Place the socket over the fastener, set the ratchet direction, and apply steady force to loosen or tighten.
• Ratchet: Flip the switch on the ratchet head to reverse the direction for tightening or loosening.

Pro Tips

• Always use the correct size socket to avoid rounding the corners of the fastener head.
• Never use a standard ratchet or socket with an impact wrench; use impact-rated tools instead.
• Keep the sockets and ratchet clean and dry after use to maintain the chrome finish and prevent rust.
• When tightening, use a torque wrench (not included) for critical fasteners where a specific value is required.
• Store the set securely on the provided rack to prevent loss and keep sizes organized.

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