Wera 8740 B HF Zyklop 3/8 inch Drive Hex-Plus Bit Socket, 3/16 inch with Holding Function 05003085001

Mechanics and technicians working on engines, machinery, or assembly lines need a bit socket that grips screws securely and prevents them from falling. The Wera 8740 B HF Zyklop bit socket is built for that: a 3/8" square drive socket with a 3/16" Hex-Plus profile and an integrated holding function. The Hex-Plus geometry increases the contact surface in the screw head, reducing notching and protecting the screw profile. The holding function holds screws firmly in place, making overhead or one-handed work easier. Made from chrome vanadium steel with a matt chrome-plated finish, this bit socket is durable and corrosion-resistant. It is suitable for manual and non-impact machine operation, conforming to DIN 3120 and ISO 1174 drive standards.

Key specifications

• Drive size: 3/8" square drive
• Bit profile: Hex-Plus
• Bit size: 3/16"
• Holding function: Yes
• Overall length: 100 mm
• Material: Chrome vanadium steel
• Surface finish: Matt chrome-plated
• Tool series: Wera Zyklop
• Application: External hexagon screws and bolts
• Drive standard: DIN 3120 / ISO 1174
• Socket type: Bit socket
• Compatibility: Manual and machine operation (non-impact)

Why choose it

The Hex-Plus profile offers a better fit than standard hex, reducing wear on both tool and screw. The holding function is a real time-saver when you need to position screws in tight spots. Wera's quality ensures long service life even in demanding workshop conditions.

Ideal use cases

• Automotive repair and maintenance
• Industrial assembly and production lines
• Precision mechanical work
• Tasks requiring screw retention in awkward positions

Good to know

This bit socket is part of the Wera Zyklop system and can be used with any 3/8" drive ratchet or adapter. It is not designed for impact wrenches.