【POWERFUL DEEP MARKING】Achieve deep, permanent marks with our pneumatic dot peen marking machine. The industrial carbide needle delivers high-intensity impacts for clear, legible marks on tough metals. Ideal for VINs and serial numbers, it works with extremely low noise on large parts and heavy-duty applications 【VERSATILE INDUSTRIAL PERFORMANCE】This pneumatic metal marking machine handles various marking areas (80*20mm/100*20mm/135*50mm/140*40mm/170*110mm) with adjustable depth 0.1-1mm(depending on the material). It marks fast (approx. 1 character/second) and is perfect for vehicle frames, chassis numbers, steel structures, and large workpieces 【PORTABLE & DURABLE BUILD】Take your marking anywhere with this portable marking machine metal pneumatic. Its compact, lightweight design and sturdy construction ensure easy movement around the shop floor. The pure copper motor guarantees long-life, precision performance 【CONNECT TO COMPUTER FOR USE】Connect this metal marking engraving machine to a computer for full control. Easily set VINs, serial numbers, and codes. The multi-board system ensures smooth, stable, and step-free dot matrix marking for reliable, continuous operation 【WIDE-RANGE APPLICATIONS】Our handheld dot peen marking machine marks steel, iron, aluminum, alloy, and hard plastics. It's essential for engines, pipes, valves, and machine parts, serving as a versatile metal tag stamping machine for automotive and metalworking