1.The HERO 81A DRAWING PENS are used convenient with well-structure.The tips can prevent them bing corroded and weared. They have good character of flowing fluently and lining smoothly.
2.The pens are widely use for carious ranges, specially for students on mechanical, architectural,electrical design and so on.
How to use:
1. Unscrew pen and pen. 2. Unscrew the pen with the trailing end of the ink reservoir perfusion. 3. Swing through needles, leads through the needle. 4. With a ruler to draw lines slightly tilted 85 degrees Celsius. 5. Mounted on the connecting rod. Analog drawing writing. 6. Drawing pen in block mounted compasses can draw small circle. 7. Drawing pen can block mounted compasses in a painting circle. 8. By the end of the pen can be rotated out of the reservoir. 9. Rinse the reservoir, while shaking, while flushing. when you use 81A series needle drawing chart, you must use a dedicated graphics Blackwater. When using it, you find no water or tip, maybe it is clogged ink agglomeration, the reservoir can be unscrewed soaked in warm water for cleaning. (This item hanged solvent inks, non-random split out through the needle to avoid damaging parts.)