2021 Rock Boring Tools Hard Rock Thread Diamond Core Drill Bits

2021 Rock Boring Tools Hard Rock Thread Diamond Core Drill Bits

1. Made by high quality alloy steel bar and tungsten carbides. Through heat treatment, they are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks.
2. In addition, customized thread button drill bits are available according to different drilling application, and custom drill bits are applicable to drill soft rock, medium hard rock and hard rock.





New Design - Uniface Bit Face Degign
The Uniface comprises a series of three new, universal bit-face designs,
one for Ø51-64mm bits;
one for Ø70-96mm bits;
one for Ø102-152mm bits.
 
The guidelines for choosing the right Uniface bit are:
1. spherical buttons for very hard rocks;
2. ballistic buttons for less-hard rocks;
3. regular bit-skirt for solid homogenous formations;
4. retrac skirt for mixed, jointed or fractured formations. 




Caracteristique:
(1)Bit body type: Standard/Retrac/Straightrac
(2)Bit face shape: flat face/drop centre/Uniface
(3)R thread: R22 R25 R28 R32 R38
(4)T thread: T38 T45 T51 ST58 GT60 
(5)Bit diameter: 32-152mm.
(6)Drill bit models: cross bit/button bit
(7)Button shape: spherical/parabolic
 

R32
Name	Diameter	Tip size(mm)		Flushing holes
	mm	gauge	front	side	front
R32 trhead button bits	41	4*9	2*8	1	1
	43	4*9	2*9	1	1
	45	4*10	2*9	1	1
R32 Retrac thread button bits	60	6*9	4*8	0	3
	64	6*9	4*9	0	3
	70	6*10	4*10	0	3
T38
Name	Diameter	Tip size(mm)		Flushing holes
	mm	gauge	front	side	front
T38 trhead button bits	57	5*11	3*10	1	1
	64	5*12	3*11	1	1
	76	5*14	3*12	1	2
T38 Retrac thread button bits	60	8*9	3*9	2	2
	64	8*9	4*9	2	2
	70	8*10	4*10	2	2
	76	8*11	4*10	2	2
	89	8*12	5*12	2	2
T45
Name	Diameter	Tip size(mm)		Flushing holes
	mm	gauge	front	side	front
T45 trhead button bits	70	6*11	4*10	0	2
	76	6*13	4*10	0	2
	89	8*12	5*12	2	2
	102	8*13	6*12	2	2
	115	8*14	6*13	2	2
T45 Retrac thread button bits	70	8*11	4*10	2	2
	76	8*11	4*10	2	2
	80	8*12	5*11	2	2
	89	8*12	6*11	2	2
	102	8*13	6*12	2	2
T51
Name	Diameter	Tip size(mm)		Flushing holes
	mm	gauge	front	side	front
T51 trhead button bits	89	8*12	5*12	2	2
	102	8*13	6*12	2	2
	115	8*14	6*13	2	2
	127	8*14	6*14	2	2
T51 Retrac thread button bits	89	8*11	5*12	2	2
	102	8*11	6*12	2	2
	115	8*12	6*13	2	2
	127	8*12	6*14	2	2

......

Competitive products: 
Tapered chisel bits and cross bit: reasonable selection of steel and tungsten carbide which perfectly bonded by high-frequency welding.
Tapered button bits: Cold forging process and excellent heat treatment exactly combined with the cold inlaying technique.
Thread cross and button bits: Correct selection of material and hot mounting process.
DTH bits: Perfect combination of material selection, heat treatment, and cold inlaying process.
DTH hammer: Perfect combination of accurate gas distribution, impeccable processing process, selection of material and heat treatment.