Taper Button Bits, Brand Name : KOMKO

Button bit feature:
1.made from steel and tungsten carbide as same grade as internationally well-known brand
2.apply �hot-insertion� processing procedure to insert the buttons as same as internationally well-known brand
3.recommended specification according to different rock formation improves design and drilling speed
4.cnc processing procedure ensures the manufacturing precision and quality consistency
5.durability from the military grade requirements of heat-treatment
6.have test quality ins soft and hard rock,the lifetime can come 450-600feet in soft rock,likewise lifetime can come 300-450feet in hard and very hard rock stone.