OED S1-32-722-67 Carbide Drilling Tools , Hole Drilling Tapered Cross Bits
S1-32-722-67 Tapered Cross Bit Small Rock Drill Bits Hole Drilling
Tapered Cross Bit S1-32-722-67 specification:
Diameter: 32mm
Length: 67mm
Tapered Degree: 7°
Carbide Dimension: 12mm*8mm
Water Holes: 1 on front, 2 on side
Advantages:
1.Premium designs and steel and premium tungsten carbide(carbide code No. YK05 supplied by ZCC factory) , Offers industry-leading strength and penetration rates for more productivity.
2.Excellent straightness and hole clean quality ,Get max . drilling performance.
Tapered cross bit suitable for mining of black metal mines(such as iron mine, manganese etc), nonferrous metal mine(such as gold, silver, copper etc), marble and granite etc. Its drilling depth usually is 15m-18m in case of hardness grade F8-14.
Rock Hardness Classification
| Gabbro | —– | ||||||||
| Gniess | —— | ||||||||
| Granite | —— | ||||||||
| Limestone | —— | ||||||||
| Marble | —— | ||||||||
| Quartzite | —— | ||||||||
| Sandstone | —— | ||||||||
| Slate | —— | ||||||||
| Shale | —— | ||||||||
| Taconite | |||||||||
| Mpa | 5 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | |
| Grade | soft | Medium | Hard to Very | ||||||
It is widely used in drilling holes with a depth size less than 5 meters and diameter scope in 20-45 mm by light-duty hand hold drills, like Y6, Y10, Y24, major use in natural dimensional stone quarry for small hole drilling, block’s trimming and 2nd splitting for small blocks. To match Hexagonal 22 mm and Hexagonal 12 mm’s tapered drill steel with 4/6/7/11/12 degree.
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