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1.Characters:Choose the carbide of medium coarse granularity,improve the wear resistence and toughness;The body is strengthened by plasma surfacing with high wear resistence,high rock breaking drilling rate.
2.Application:Dinas,limestone,normal iron ore,bauxite ore,pebble,gravel stratum,concrete,bricklaying,undense limerock,strong & medium weathered medium hard stratums;Hardness factor is equal or less than 6(compressive strength is equal or less than 60MPa)
Product Name | B47K22H B47K19H coring barrel auger bits rotary digging picks rock drilling chisel teeth |
Brand | Huanghe Whirlwind |
Material | tungsten carbide+ 42CrMo |
Diameter of carbide tip | 22mm, 19mm, 17.4mm, 25mm, 30mm. |
Model Number | 3050-19/3050-19A |
Hardness | HRC48~52 |
Weight | about 1.30kg/pc |
Application | rock auger, core barrel |
Work Condition | medium to extremely hard rock and concrete |




Listed on Shanghai Stock Exchange in 1998.
Direct factory price,integrating production,R&D,trade.
Passed the ISO9001:2008 quality system authentication.
Our Workshop
Our R&D center
Our team

Packing Details : Plastic Boxes
Port:QINGDAO
Lead Time :30 days after your order


A:We are manufacture.
A:Our main products includes pick-series products,such as picks for construction,rotary,coal,trenching.
A: Yes, please contact us for details.
A: Yes, We can.
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