＊Auger (roughness about #100) is endurable, not easy to wear away ＊It takes 3-5 seconds to change Tungsten rod; To polish Tungsten ＊Adjustable slope of tungsten rod, easy to operate ＊Solid base for which can be moved casually (one man can be done) ＊Hard materials such as drill、scribing rod、firing pin are easy to |
＊Swift tackling of tungsten rod (diameter:∮1.0~∮6.0MM)