What is chisel drill button bit ?
Chisel drill button bit:
Specifications: φ 28, 30, 32, 34. 36, 38, 40 and 42
Application: it is suitable for light rock drill to drill rock hole with diameter less than 50 mm. It is widely used in coal mine, iron ore, gold mine, steel mine, lead-zinc mine and other mines, railway, highway and water conservancy construction.
Features: special technology, high quality steel, alloy, high toughness and high wear resistance, high production efficiency and low comprehensive cost.
Usage and precautions of air drill
1. The taper of drill head and drill rod should be effectively matched, and the matching length should not be less than 25mm. Please match appropriate drill rod according to this principle.
2. It is forbidden to use hammer to knock the drill rod.
3. The chisel drill button bit must be controlled when using the blade shaped drill bit. When the drilling bit is slow and the obtuse angle width at both ends of the drill head is greater than 2 or 5mm, it should be grinded in time. When grinding, 46-60 SiC grinding wheel should be used, and its linear speed should not be less than 18 m / s.