Small hole rock drilling tools are mainly used with hand-held, air-leg, and rail-type pneumatic rock drills for shallow-hole drilling and small-diameter blast hole drilling in mining, stone quarrying, and similar applications. The primary types of small hole rock drilling tools include tapered drilling tools, integral drill rods, plug hole rods, and shank end rods.
The tapered button bitis primarily used with pneumatic rock drills and tapered drill rods. It enables drilling operations by connecting the taper of the bit to the drill rod. This design is optimal for small-diameter blasting in mining and quarrying.
Tapered drill rods are suitable for small pneumatic or hydraulic rock drills in shallow-hole drilling applications. Typically made from H22 and H25 hexagonal hollow drill steel, they are used in quarrying, mining, and construction projects.
Integral drill rods combine the drill bit, drill rod, and shank adapter into one unit. They are mainly used for small-diameter and shallow drilling in underground mining, especially in low-power rock drills.
Hexagonal shank rods, also known as shank end rods, are lightweight rock drilling tools primarily used with rail-type pneumatic rock drills. They are frequently used forsmall-hole drilling in underground bolting and other mining applications.