Hex key Proline 48320 — single-piece Allen wrench

Proline 48320 — single-piece Allen wrench is a compact, single-size hex key designed for manual tightening and loosening of hex-socket fasteners. The tool is made as one solid piece with a covered handle for improved grip and comfort during use. It is available in multiple sizes to match standard hex bolt and screw dimensions, making it suitable for a variety of small assembly and repair tasks in workshops and at home.

Advantages

The single-piece construction provides durability and consistent torque transfer without joints or moving parts. A covered handle increases grip security and reduces hand fatigue during prolonged use. The precisely machined hex tip ensures a snug fit in hex sockets, which minimizes rounding of fastener heads and improves turning accuracy.

Suitable for

• Manual tightening and loosening of hex-socket bolts and screws
• Workshop maintenance and equipment assembly
• Home repairs and furniture assembly
• Hobby projects and small mechanical adjustments

Key specifications

• Tool type: single-piece hex key (Allen wrench)
• Available sizes: 1.5 mm, 2.0 mm, 2.5 mm, 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm, 8.0 mm, 10.0 mm
• Handle: covered handle for improved grip
• Drive method: manual use
• Material: hardened steel (typical for hex keys; designed for hand tools)

How to use

Select the hex key size that matches the hex socket of the fastener. Insert the short or long end of the key into the hex recess so that the contact surfaces engage fully. Apply steady hand force to turn the wrench clockwise to tighten or counterclockwise to loosen. Use the covered handle to maintain a secure grip and control torque; avoid excessive force that could strip the fastener or deform the tool.

Usage recommendations

For reliable performance, keep the hex tip clean and free of debris, choose the correct size to avoid rounding fasteners, and store the wrench dry to prevent corrosion. Use the larger sizes for higher torque applications and the smaller sizes for precision or confined-space work.