Wrenches & Keys
Wrench, spanner, socket, allen key, hex key and Torx size charts.
Wrenches & Keys charts
Allen Key Size Chart: Metric & SAE Set Table (Free PDF)
Metric and SAE L-key dimensions, arm lengths, torsional strength, ball end limits and standard set contents.
Hex Key Size Chart: Allen Wrench Table for Every Screw (Free PDF)
Allen key sizes for every socket screw: metric and imperial cap, button, flat and set screws, with safe metric-imperial substitutions.
Socket Size Chart: Drive Size, Metric and SAE Socket Table (Free PDF)
Drive sizes, metric and SAE socket runs, bolt-to-socket lookups and interchange verdicts in one chart.
Spanner Size Chart: Metric & Imperial Table (Free PDF)
Thread size to spanner size (width across flats) for metric M2-M64 and imperial SAE bolts, including legacy DIN head sizes.
Torx Size Chart: T & E Size Table (Free PDF)
Complete Torx driver reference: T1 to T100 and E4 to E24 with dimensions, torque, Torx Plus and security variants.
Wrench Size Chart: SAE and Metric Sizes with Conversion Table (Free PDF)
Every SAE and metric wrench size in order, with exact conversions, safe swap verdicts and bolt-to-wrench mapping.