Allen (Hex) Screwdrivers
Hexagonal socket design provides excellent grip and high torque capacity. Essential for Japanese machinery, motorcycles, and precision equipment assembly.
Allen Key Advantages
High Torque Capacity
Six flat surfaces provide maximum contact area, allowing very high torque application without damage.
Precision Fit
Tight tolerances ensure perfect fit and prevent rounding of screw heads even under high stress.
No Cam-Out Risk
The hex socket design completely eliminates cam-out, making it ideal for high-torque applications.
Allen Key Size Charts
Metric Hex Keys
Imperial Hex Keys
Allen Key Applications
Japanese Motorcycles
Uses: Engine bolts, brake calipers, suspension components, fairings
Common Sizes: 3mm, 4mm, 5mm, 6mm, 8mm
Furniture Assembly
Types: IKEA, modern furniture, office chairs, desks
Common Sizes: 4mm, 5mm, 6mm
Precision Machinery
Equipment: CNC machines, 3D printers, optical equipment
Common Sizes: 2mm, 2.5mm, 3mm, 4mm, 5mm
Automotive
Uses: Brake systems, suspension, engine components
Common Sizes: 5mm, 6mm, 8mm, 10mm
Types of Allen Tools
L-Shaped Keys
Classic L-shaped design provides leverage and access to recessed screws.
T-Handle Keys
T-handle provides maximum torque and comfortable grip for heavy-duty applications.
Hex Bits
Hex bits for use with ratchets, impact drivers, and power tools.
Ball-End Keys
Ball-end allows access to screws at angles up to 25 degrees.
Quality Allen Key Sets
Professional Sets
- Wera Hex-Plus - German engineering
- Bondhus Ball-End - USA made
- PB Swiss Tools - Swiss precision
Japanese Quality
- Vessel Ball Grip - Ergonomic handles
- Anex Hex Keys - Precision manufacturing
- Hozan Hex Set - Electronics focused
Budget Options
- Tekton Hex Set - Good value
- Craftsman Hex Keys - Lifetime warranty
- Husky Hex Set - Home Depot brand