Hex key set YATO YT-0500, L-shaped Allen keys, 9 pieces

YATO YT-0500 is a set of nine L-shaped Allen (hex) keys designed for tightening and loosening hex socket screws in workshop, automotive and household applications. The keys are arranged in a compact plastic holder that keeps sizes organised and readily available. Manufactured from high-quality CRV 6150 vanadium steel with a hardness in the range of 52–55 HRC, the set delivers consistent engagement with hex fasteners and balanced durability for general repair tasks.

Advantages

The L-shaped design provides leverage for torque control and a short arm for access in confined spaces. CRV 6150 vanadium steel construction offers a combination of strength and elasticity that resists bending under load. The compact plastic pendant keeps the nine keys together in size order, simplifying selection and storage. A uniform hex tip profile ensures reliable fit with standard hex socket screws and reduces the risk of rounding fasteners when used correctly.

Suitable for

• Workshop assembly and maintenance
• Automotive repairs and adjustments
• Household furniture assembly and appliance maintenance
• Tightening and loosening hex socket screws in machinery and equipment

Key specifications

• Set composition: 9 L-shaped hex (Allen) keys
• Material: CRV 6150 vanadium steel
• Heat treatment hardness: approx. 52–55 HRC
• Tip profile: standard hexagon tip for hex socket screws
• Storage: compact plastic holder/pendant for organised storage

How to use

Select the key that fits snugly into the hex socket of the screw to avoid cam-out or rounding. Insert the short or long arm as needed: use the long arm for additional reach and the short arm for greater torque. Apply steady, even force and avoid sudden impacts. When working in tight spaces, orient the L-shape so the short arm engages the fastener while the long arm provides leverage. After use, return keys to the plastic holder to maintain organisation and protect tips from wear.

Usage recommendations

For best results, match key size precisely to the fastener, avoid excessive leverage that can overstress the key or fastener, and store the set in a dry place to prevent corrosion. Use the L-shaped key set for routine tightening and loosening tasks rather than high-torque industrial applications; for high-torque or impact work, consider tools designed for those conditions.