Aug 25, 2025 · Below is a detailed hex key size chart showing both metric and imperial measurements. This chart will help you quickly find the right size tool for your project.

Hex keys are designated with a socket size and are manufactured with tight tolerances. As such, they are usually sold in kits that include a variety of sizes. Key length typically increases with …

Allen wrench (hex key) size chart for long arm and short arm allen wrenches, torx/star keys. Provides dimensions for inch and metric allen wrenches.

Apr 7, 2021 · This article provides a summary of the commonly available sizes of Allen wrenches/keys and explained the different types of Allen wrenches as well as the advantages …

Complete allen key specification charts for imperial and metric hex keys. Download printable PDF references with socket sizes, key dimensions, and torque specifications.

Inch Series Hexagon Keys ... Applicable Specifications: ASME B18.3. Hardness: RC 45-53.

Allen Key (Hex Key) and Hex Bit Sizes Chart to show dimensions of Allen keys (Hex keys) and bit sockets according to ASME B18.3-2003 standard. Hexagonal (Hex) keys (Allen Keys) and bits …