Allen keys Size M1.5 M2 M3 M4 and M6 for 3D Printer
Allen Keys and Hex allen key that are designed to let you avail to advantages that are important in fasteners.
- Allen keys size M1.5 M2 M3 M4 and M6 for 3D printer are hex allen key tools used to tighten and loosen socket-head screws in 3D printer assemblies.
- Made from hardened alloy steel, these keys support higher torque for fastening tasks without bending easily.
- Black oxide coating improves corrosion resistance and helps extend tool life in workshop conditions.
Specifications
- Sizes: M1.5, M2, M3, M4, M6
- Material: high-grade alloy steel (hardened and tempered)
- Finish: black oxide coating (corrosion-resistant, low reflection)
- Package includes: 1 pcs of allen key (size as per order)
Features
- Simple, small, and lightweight hand tool
- Six contact surfaces between screw and hex allen key for better grip
- Protects screw/bolt contact surfaces from external damage
- Supports recessed-head and headless screws
- Helps hold the screw on the key during insertion
- Torque is controlled by key length and thickness
- Either end can be used for reach or torque advantage
- Can be reconditioned by grinding the worn end (if needed)
Applications
- 3D printer assembly and maintenance using allen keys
- Tightening socket head cap screws, grub screws, and recessed fasteners
- DIY CNC, robotics, and aluminium profile builds using hex allen key
- General workshop fastening where internal-hex screws are used
Usage
- Select the correct size (M1.5/M2/M3/M4/M6) to avoid stripping the screw socket.
- Insert fully into the screw head before turning.
- Use the long end for reach and the short end for higher torque.
- Store dry to maintain black oxide finish.
Package Includes
- 1 pcs of allen key.













ordered a 1.5mm and 2mm. I got both 2mm. its alright. i will buy another from a local shop. not a big issue for me.