... carbide tips are import from South Africa, widely applied in Hand Held (short-hole) drilling system for dimensional ... of buttons is 4, 5, 6, 7, 8 , 9, 7 buttons is very popular for Hand held (short ... .5 m up to 7.9 m in length, and complimented by a complete range of reamers, blade and ... Taper: degree 4°46′ 6°, 7°, 11°, 12°.(5) Package: in wooden case or in carton.(6) Productivity: 50000pcs/ monthOur ...