The top sub is a part of DTH hammer. It connects with drill pipe or connector. KSQ can provide various subs to meet with different shanks of your hammers. For example, DHD, COP, NUMA, QL, SD, etc.

DTH Subs Specification
Female- Male
Female A	Male B	Diameter A	Diameter B	Length	Wrench flat	Weight	Part Number
Female A	Male B	mm	mm	mm	mm	kg	Part Number
2 3/8"API Reg	2 3/8"API Reg	77	77	140	65	4.0	4148301570
2 3/8"API Reg	2 3/8"API Reg	90	90	140	65	5.5	4148301571
2 3/8"API Reg	2 3/8"API Reg	102	102	130	76	7.8	4148301572
2 3/8"API Reg	2 3/8"API Reg	90	90	144	65	5.5	4148301573
2 3/8"API Reg	2 3/8"API IF	95	95	130	65	8.0	4148301574
2 3/8"API Reg	2 7/8"API Reg	90	102	120	95	10.5	4148301575
2 3/8"API IF	3 1/2"API Reg	90	90	164	65	6.8	4148301576
2 7/8"API Reg	2 3/8"API Reg	90	90	154	65	6.5	4148301577
2 7/8"API Reg	2 3/8"API Reg	90	115	120	95	11.0	4148301578
3 1/2"API Reg	3 1/2"API Reg	115	115	219	95	12.5	4148301579
3 1/2"API Reg	2 3/8"API IF	115	115	160	95	10.5	4148301580
3 1/2"API Reg	2 7/8"API Reg	115	115	160	95	10.8	4148301581
3 1/2"API Reg	2 7/8"API IF	115	115	160	95	10.8	4148301582
3 1/2"API Reg	3 1/2"API Reg	115	115	160	95	10.5	4148301583
3 1/2"API Reg	4 1/2"API Reg	146	146	132	120	16.5	4148301584
4 1/2"API Reg	3 1/2"API Reg	146	115	235	95	19.0	4148301585
F48×10	F42×10	59	59	203	40	-	4148301586
F48×10	F48×10	59	59	203	40	-	4148301587
F48×10	2"API Reg	59	59	203	40	-	4148301588
Female - Female
Female A	Male B	Diameter A	Diameter B	Length	Wrench flat	Weight	Part Number
Female A	Male B	mm	mm	mm	mm	kg	Part Number
2 3/8"API Reg	2 3/8"API Reg	77	77	200	65	4.5	4148301589
2 3/8"API Reg	2 3/8"API Reg	90	90	200	65	6.0	4148301590
2 3/8"API Reg	2 7/8"API Reg	90	90	225	65	6.2	4148301591
2 3/8"API Reg	3 1/2"API Reg	115	115	210	95	10.0	4148301592
Male - Male
Female A	Male B	Diameter A	Diameter B	Length	Wrench flat	Weight	Part Number
Female A	Male B	mm	mm	mm	mm	kg	Part Number
2 3/8"API Reg	2 3/8"API Reg	90	90	70	65	4.6	4148301593
2 3/8"API Reg	3 1/2"API Reg	90	115	97	95	9.0	4148301594
3 1/2"API Reg	3 1/2"API Reg	115	115	90	95	10.0	4148301595

Drill Subs For Connecting Drill Tools Dth Hammer Accessories

Rock Drilling Tools

DTH Drilling Tools

Button Drill Bit

DTH Hammers

DTH Drill Bits

Self Drilling Anchor Bolt

Retractable Drill Bit

Drill Shank Adapter

Threaded Drill Rod

Tapered Drill Rod

Tricone Drill Bit

Drill Coupling

Integral Drill Rod

Low Profile Dump Truck

Load Haul Dump Machine

PDC Drill Bit

Ceramic Vacuum Filter

Chisel Drill Bit

Reaming Drill Bit

Rock Drilling Rig

Cross Bits

Drill Subs For Connecting Drill Tools Dth Hammer Accessories

jobber drill bit set

multi purpose drill bit set

craftsman drill bit set