GSD Series DTH Drill Bit

DTH bits (also called DTH bits or spline connection bit) is connected through the drill bit spline and impactor, for impact orientation and rotation of a transmission, braze the broken rock. Mainly used in large mines (open pit and underground mining), open architecture, and a large stone mining engineering construction conditions.

Technical Data of GSD Series DTH Drill Bit(High Air Pressure)

Diameter		No x Buttons Diameter(mm)		Button Angle	Air Holes	Weight(kg)
mm	inch	Gauge Buttons	Front Buttons	Button Angle	Air Holes	Weight(kg)
Drill Bits for GSD4 Hammers
105	4 1/8	7x16	6x14	38	2	9.0
110	4 5/16	7x16	6x14	38	2	9.5
115	4 1/2	7x16	6x14	38	2	9.8
120	4 3/4	8x16	8x13	38	2	11.5
125	4 15/16	8x16	10x13	38	2	12.3
130	5 1/8	8x16	8x14	38	2	13.0
Drill Bits for GSD5 Hammers
138	5 1/2	7x18	7x15	38	2	15.6
146	5 3/4	7x18	7x15	38	2	16.5
152	6	8x16	8x15	38	2	17.0
165	6 1/2	8x18	8x16	38	2	18.0
178	7	8x18	10x16	38	2	21.0
Drill Bits for GSD6 Hammers
152	6	8x18	4x16 +4x14	38	2	26.0
165	6 1/2	8x18	8x16	38	2	27.0
178	7	8x18	10x16	38	2	29.0
185	7 1/4	8x18	10x16	38	2	31.0
194	7 1/2	10x18	13x16	38	2	32.0
203	8	10x18	8x18 +6x16	38	2	34.0
216	8 1/2	10x18	8x18 +6x16	38	2	44.0
Drill Bits for GSD8 Hammers
194	7 1/2	10x18	13x16	38	2	35.0
203	8	10x18	8x18 +6x16	38	2	37.0
216	8 1/2	10x18	8x18 +6x16	38	2	48.0
235	9 1/4	12x18	30x16	38	2	60.0
254	10	12x18	12x18 +8x16	38	2	70.0
275	11	12x18	20x18 +9x16	38	2	85.0
305	12	12x18	20x18 +9x16	38	2	94.0
Drill Bits for GSD10 Hammers
254	10	12x18	12x18 +8x16	38	2	108.0
275	11	12x18	20x18 +9x16	38	2	115.0
305	12	12x18	20x18 +15x16	38	4	125.0
311	12 1/4	12x18	20x18 +16x16	38	4	130.0
318	12 1/2	12x18	20x18 +18x16	38	4	142.0
330	13	16x18	20x18 +22x16	38	4	155.0
Drill Bits for GSD12 Hammers
305	12	12x18	20x18 +15x16	38	4	156.0
311	12 1/4	12x18	20x18 +16x16	38	4	161.0
318	12 1/2	12x18	20x18 +18x16	38	4	172.0
330	13	16x18	20x18 +22x16	38	4	185.0
356	14	16x18	20x18 +26x16	38	4	191.0
381	15	16x18	20x18 +28x16	38	4	200.0