*Materiels: Middle carbon steel 40 # ~ 45 #.
*Diameter : 0.2mm ~ 5mm
*Length : 0.50m ~ 100m(or more)
*Guage : Head: Flat, countersunk type.
*Point: Diamond type.
*Shank: Smooth, Fluted, Twisted, Spiral.
*Finish: Bright, Electro Galvanized, Blacked, Blue.