Quick Answer: The Hex Allen Key is an L-shaped hexagonal key in chrome vanadium (Cr-V) or S2 alloy steel, hardened and tempered. It comes in metric sizes from 1.5 mm to 10 mm, with imperial variants available.
Last updated: October 2026
Key Features
L-shaped hexagonal profile with chamfered ends
Chrome vanadium (Cr-V) or S2 alloy steel, hardened and tempered
Metric sizes 1.5 mm to 10 mm
Imperial variants available
Black oxide or satin chrome finish
Technical Specifications
Specification
Value
Material
Chrome vanadium (Cr-V) or S2 alloy steel, hardened and tempered
Shape
L-shaped hexagonal, chamfered ends
Sizes
1.5 mm to 10 mm (metric); imperial variants available
Finish
Black oxide or satin chrome
About This Product
Hex keys turn socket-head screws and grub screws found on machines, furniture and lab apparatus. In engineering workshops students use them when assembling and maintaining equipment. Educational Instrument can arrange export supply of the Hex Allen Key to Costa Rica, Albania, Eritrea, Haiti, Ecuador and Zambia.
Frequently Asked Questions
What sizes does the Hex Allen Key come in?
Metric sizes from 1.5 mm to 10 mm are offered, and imperial variants are available.