Check out The MarkStar Pro from Laser Photonics, the only hand held class 1 fiber on the market. Can go up to 50w. Let me know if you need any more information.
The MarkStarPRO™ is a hand-held 3D Fiber Laser Marking System designed for true portability into the field or warehouse operating off both AC/DC power sources. For oversized applications, the MarkStarPRO is the laser marking system of choice. Fonon Corporation’s MarkStarPRO is an industrial-grade system designed to operate under continuous high-vibration, shock, and dust conditions and is Windows 7 compatible. All Direct Parts Marking (DPM), including UDI/UID barcodes, logos, and all other service marks are permanent, legible and non-removable with special attention to highly-reflective metals. The system is maintenance-free and requires no consumables with a MTBF rating of > 50,000 hours MarkStarPRO Hand-Held Portable Main Features:
Maintenance-Free Direct Part Marking (DPM) requiring no consumables
Continuous operation under high-shock, vibration, and dust conditions
12V/24V DC power source-110V/220V AC power source
20W Q-Switched Fiber Laser
Red-Diode Pointer
Galvo Scan Head with 100mm F-Theta Lens (2” x 2” marking area)
2” x 2” processing chamber (option: 4″ x 4″ chamber)
USB Port supporting Windows 7/FiberScan C3 LT
Industrial-grade laptop PC includes software
Wide range of pulse durations, high-repetition rates and peak powers
Class 4 laser-rated safety viewing port
Laser “ON” locked footpad contact for operator safety
Mini-Exhaust Ventilator
Operating Temperature Range: 0 to 50 degrees C
Flexible 3 Meter Optical Fiber Cable
Weight: Handheld unit 10 pounds / Total system weight 35 pounds