Metric Proferred Hand Tools

At South Coast Fasteners, Inc., we don’t just supply fasteners and industrial supplies, we stock the right tools built to install them. Our line of Metric Proferred® Hand Tools is built for tradespeople who demand consistency and confidence in the tools they use on a daily basis. From machined hex keys to full metric socket sets and impact-rated accessories, Proferred® metric hand tools are designed for torque-heavy environments, tight clearances, and field usage conditions. Whether you’re in the shop or on the jobsite, these tools deliver the strength and fit you expect from a pro-grade brand.

Built to Specification and Industry Standards

All Metric Proferred® Hand Tools meet or exceed applicable industry specifications for hardness, material quality, and dimensional tolerances. Constructed from high-grade 6150 CRV alloy steel, Proferred® sockets and hex keys offer superior wear resistance and reliability. Metric tools are built to match ISO fastener profiles and are compatible with all major hand and power tool systems. Black oxide and phosphate coatings provide tool corrosion protection in heavy-use environments.

Hex Keys

Metric Hex Key: Compact design for tight spaces, machined from durable chrome vanadium alloy. Black oxide finish resists rust and offers clean, slip-free engagement in hex sockets. (Short Arm, Black. 6150 CRV Alloy)

Metric Hex Key: Provides extended reach and increased torque for recessed fasteners. Chamfered ends and alloy construction ensure repeatable performance in mechanical and equipment applications. (Long Arm, Black. 6150 CRV Alloy)

Metric Woodruff Key: Semi-circular drive keys used to lock rotating elements to shafts. Precision fit for metric keyways in motors, gearboxes, and pulleys. DI steel for strength and longevity under load. (Plain)

Socket Sets

1/4" Metric Socket Set: Compact set ideal for light-duty equipment, tight engine compartments, and electronics. Includes common metric sizes for smaller fasteners and assemblies.

3/8" Metric Socket Set: Mid-range set for mechanical and assembly work. Covers standard metric sizes used in machinery, service work, and shop maintenance.

1/2" Metric Socket Set: Heavy-duty socket set built for larger fasteners and higher torque jobs. Perfect for industrial maintenance, construction equipment, and fabrication work.

Impact 1/2" Metric Socket Set: Forged for pneumatic and cordless impact tools. Black phosphate coating and reinforced walls withstand shock loading and repeated impact cycles.

Socket Accessories

1/4" Metric Sockets: Precision-fit sockets for delicate assemblies and light mechanical work. Machined to prevent rounding and ensure fastener engagement in tight spaces.

3/8" Metric Sockets: Versatile and durable. These sockets cover mid-range torque jobs and are compatible with ratchets, extensions, and powered drivers.

1/2" Metric Sockets: Designed for power and control. Ideal for structural bolts, frame connections, and large mechanical assemblies.

Impact 3/8" Metric Sockets: Built to handle mid-level impact applications. Coated and tested for durability under torque cycles in repetitive, powered use.

Impact 1/2" Metric Sockets: Heavy-duty impact-rated sockets for consistent performance in field work, industrial maintenance, and repair operations.

Impact 3/4" Metric Sockets: For serious torque requirements. These sockets are engineered for high-load applications in construction, fleet maintenance, and heavy machinery.

Why Choose South Coast Fasteners?

At South Coast Fasteners, we don’t sell throwaway tools. We stock Metric Proferred® Hand Tools because they’re built for real work...day in, day out. Whether you’re a mechanic, millwright, or field tech, you need tools that hold up under pressure and don’t fail. We maintain the inventory, provide fast turnaround, and back every tool with service and experience that speaks to your industry. No downtime with this brand. Just quality tools that do the job right the first time.

Shop Metric Proferred® Hand Tools Online Today

Browse our full range of Proferred® metric hex keys, socket sets, and impact-rated accessories 24/7 online now at South Coast Fasteners. Backed by people who know what real work looks like, we're here to provide you with the tools you need without second guessing. Need help matching tool sizes or or just need some advice? Contact us today and we’ll help get you dialed in.