Features
	
Option half-automatic or manul mechanic bottom open system. Built-in ventilation pipe;
	
Cast pilot with rock drilling bits , arc guide plate teeth arrangement, double unlocking system;
	
Staggered arrangement of rock drilling bits;
	
Applicable layers: gravel , pebble , highly or medium weathered rock;
	
	
	
 
Customizable Items
Cutting DIA. Custom : design various cutting diameter based on demand, like φ950、φ1050 etc.
	
Shell HIT. Custom : design as demand, prolong or shortten, increase of efficiency by drilling more.
	
Key Component Reinforce Custom : strengthen the key component to extend life cycle;
	
Cutter Custom: single cutter and double cutter design as demand;
	
 
Bottom Custom : single bottom and double bottom design as demand;
	
 
Kelly Box Custom : custom kelly box size based on the kelly bar, like 130*130, 150*150,200*200 etc;
	
 Bottom Open Mechanic : half-automatic or manul mechanic bottom open system. 
Contact: AULONE
Phone: 86-15573139663
Tel: 86-15573139663
Email: admin@aulone.com
Add: Address:Kaiyuan road 36,Chunkou,Liuyang, Hunan,China. Email: info@aulone.com