Metric L-Shaped Angled Open Hex Spanners Double Ended Socket Wrench 8mm To 22mm

Measure across the flat faces of your hex bolt head or socket recess using a caliper or ruler. The measurement in millimeters is your hex socket size. Common sizes for bicycles are 4mm–8mm; furniture flat-packs typically use 4mm–6mm; automotive and machinery fasteners often range from 8mm–19mm. When in doubt, a set of multiple sizes lets you test-fit before committing torque.

The L-shape gives you two lever lengths in one tool. The short arm provides high torque for breaking loose tight fasteners, while the long arm allows faster spinning once the fastener is moving. The angled geometry also lets you reach bolts set deep in recesses or surrounded by obstructions — situations where a straight hex key or T-handle would not fit.

These wrenches are designed for hand-tool torque levels appropriate to their size. Larger sizes (14mm–19mm) provide greater mechanical advantage and are suited to heavier fasteners. For torque-critical applications (e.g., engine head bolts or structural connections), always verify the required torque specification and use a calibrated torque wrench where precision is needed. Contact us to confirm suitability for your specific application.

No. These are metric-only tools sized in millimeters. Imperial hex fasteners are measured in fractions of an inch (e.g., 1/4", 5/16"). While some metric and imperial sizes are close in dimension, using a mismatched wrench risks rounding the fastener head. Use the correct metric or imperial tool for your fastener standard.

Always use the correct size wrench — a loose fit is the primary cause of rounding. Ensure the wrench is fully seated in the socket recess before applying torque. Avoid using extension pipes on the wrench handle beyond its designed length, as this can generate torque that exceeds the fastener's or wrench's rated capacity. Clean debris from the socket recess before inserting the wrench.

These wrenches are suitable for use on standard metric hex fasteners including stainless steel bolts commonly found in bicycles, furniture, and light machinery. For hardened or high-tensile fasteners (Grade 10.9, 12.9, or equivalent), contact us to confirm material compatibility before use, as tool hardness relative to fastener hardness affects performance and longevity.

All pack options contain the same wrench in the selected hex socket size. The 1 Pcs option is ideal when you need a single specific size. The 2 Pcs pack is useful for keeping one in a workshop and one in a field kit, or as a backup. The 5 Pcs pack offers the best per-unit value for workshops, maintenance teams, or anyone who wants to stock spares across multiple tools or job sites.