Hex Key Set Proline 48367 — 7-piece inline hex key (Allen) set

Proline 48367 is a 7-piece inline hex key (Allen) set designed for driving hexagonal socket screws in assembly, repair and maintenance tasks. The compact set contains seven common metric sizes and is manufactured from steel with high resistance to abrasion and twisting. A metal ferrule covered with soft plastic provides a comfortable grip and helps secure the keys within the holder for easy storage in a toolbox or workshop drawer.

Advantages

The hex keys are made from abrasion- and twist-resistant steel that ensures consistent torque transfer and long service life under frequent use. Inline design keeps the keys aligned and accessible while the plastic-covered ferrule offers improved handling and reduced slippage. The compact holder organizes the seven sizes for quick selection and compact storage, making the set suitable for both professional and domestic environments.

Suitable for

• Assembly and disassembly of furniture and equipment with metric hex fasteners
• General mechanical and maintenance work in workshops and garages
• Repair tasks on bicycles, machinery, and appliances requiring metric Allen keys
• Portable tool kits for field service and home DIY projects

Key specifications

• Material: high-resistance steel with abrasion and twist resistance
• Holder type: inline holder with metal ferrule covered with soft plastic
• Set composition (metric sizes): 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm
• Number of pieces: 7
• Form factor: L-shaped hex keys in an inline organizer

How to use

Select the hex key that matches the hexagonal socket size of the fastener to avoid rounding. Insert the short or long arm of the key into the screw head depending on required clearance and leverage; use the short arm for higher torque and the long arm for reach. Keep steady, even pressure while turning to prevent cam-out and damage to the fastener. After use, place the key back into the inline holder to maintain organization and protect the tool from corrosion and wear.

Usage recommendations

Use the correct metric size for each fastener and avoid applying excessive force that could deform the key or screw head. Regularly clean and lightly lubricate the hex keys to reduce wear and maintain smooth operation. Store the set in a dry place and keep the plastic-covered ferrule free of debris to ensure secure holding of the keys in the organizer.