Specifications

5" pilot bit:
1. 10 years manufacturing experience
2. Certificate: ISO9001:2008
3. Material: Carbi

5" nod140 dhd350 dth eccentric overburden pilot bit :

 

	1	Casing Tube	Maximum O.D.: 171mm Minimum O.D.: 155.6mm
	2	Drill Pipe	Connection Thread: API2 3/8”Reg O.D.: 89mm Wrench Flats: 65mm
	3	Guide Sleeve	Effective length: 205mm
	4	DTH-Hammer	ND55, Cop54, NSD5, DHD350R, NQL50
	5	Casing Shoe	L3=90mm L4=63mm D3=155.3mm D4=143mm
	6	Guide Device	L1=55mm L2=160mm D1=141mm D2=154mm
	7	Reamer	D5=138mm L5=69.5mm Reaming Diameter: 185mm Reamer has 7*14 mmbuttons
	8	Pilot Bit	D6=138mm L6=66mm Gauge button: 8*16mm Front button:8*14mm

 

 

 

 

 

 

down the hole hammer | martillo de fondo | o martelo buraco | marteau fond de trou | Imlochhammer | martello | a lyukba kalapács | alasuppovasara | síos an poll casúr | ned i hullet hammer | ned i hullet hammer

down the hole bit | por el poco agujero | baixo o bit buraco | vers le bas le bit de trou | in das Loch Bit | il bit del foro | a lyukba bit | síos an poll giotán | ned i hullet bit | ned i hullet bit