Description

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Product Description

57 DTH Hammer Bit Drilling Accessories

Features
1. Hardening treatment of the parts surface: with longer operating life and excellent anti-wear properties
2. Simple structure: greatly minimize the chances of structural failure, convenient operation.
3. Take care of both the drilling wear life and drilling efficiency.
Advantages
* Long service life: abrasive ratio of cemented carbide is 10-20 times more than similar products, so the service life is greatly extended.
* High drilling efficiency: cemented carbide is of high hardness and good abrasion resistance. The drilling bit always keep
sharps, thus largely increase the drilling speed.
* Wide application: The drilling bit is applicable for drilling the medium and hard strata, like carbonate rock, limestone, chalk rock, clay rock, siltstone, sandstone, etc.
* Because of fast drilling speed and long service life, the tripping times is less, and the drilling cost is greatly reduced, and
it has superior cost performance ratio.

Technical Date

Diameter			Button Qty x Button Diameter (mm)			Button Angle	Flushing Hole	Weight (kg)
mm	inch	Gauge Buttons	Front Buttons
57	2 1/4	6×9	2×8	38	2	1.6
64	2 1/2	6×10	3×10	38	2	1.8
70	2 3/4	6×12	4×10	38	2	2.1
76	3	6×12	4×10	38	2	2.4
76	3	6×13	4×10	38	2	3.3
80	3 1/8	6×14	4×11	38	2	3.4
82	3 1/4	6×14	4×11	38	2	3.5
90	3 9/16	8×12	5×12	38	2	3.7
90	3 9/16	8×12	7×11	38	2	4.6
92	3 5/8	8×12	7×11	38	2	4.6
95	3 3/4	8×12	7×11	38	2	4.7
100	3 15/16	8×12	7×12	38	2	4.8
105	4 1/8	8×14	7×12	38	2	5.0
110	4 5/6	8×14	7×12	38	2	5.5
105	4 1/8	8×14	7×12	38	2	7.6
110	4 5/16	8×14	7×12	38	2	7.8
115	4 1/2	8×14	7×13	38	2	8.2
120	4 3/4	8×14	8×13	38	2	8.7
125	4 15/16	8×14	10×13	38	2	8.9
130	5 1/8	8×16	8×14	38	2	9.4
130	5 1/8	8×16	8×14	38	2	15
135	5 1/4	8×16	8×14	38	2	15.2
138	5 1/2	8×16	10×14	38	2	15.6
140	5 1/2	8×16	10×14	38	2	15.8
146	5 3/4	8×18	8×15	38	2	16.1
150	5 7/8	8×18	8×15	38	2	16.5
152	6	8×18	8×15	38	2	17
156	6 1/8	8×18	8×16	38	2	17.5
152	6	8×18	4×16+4×14	38	2	23
154	6	8×18	4×16+4×14	38	2	23
156	6 1/4	8×18	4×16+4×14	38	2	23
159	6 1/4	8×18	4×16+4×14	38	2	23.5
165	6 1/2	8×18	8×16	38	2	24
171	6 3/4	8×18	8×16	38	2	25
178	7	8×18	10×16	38	2	26
185	7 1/4	8×18	10×16	38	2	26.8
190	7 1/2	10×18	13×16	38	2	27.5
203	8	10×18	8×8+6×16	38	2	31
200	7 7/8	10×18	8×18+6×16	38	2	46
203	8	10×18	8×18+6×16	38	2	47
216	8 1/2	10×18	8×18+6×16	38	2	53
219	8 5/8	10×18	8×18+6×16	38	2	54
222	8 3/4	10×18	8×18+6×16	38	2	55
225	8 7/8	10×18	8×18+7×16	38	2	56
229	9	10×18	8×18+7×16	38	2	57
235	9 1/4	12×18	30×16	38	2	57.5
240	9 1/2	12×18	30×16	38	2	58
254	10	12×18	12×18+8×16	38	2	61
270	10 5/8	12×19	20×18+8×16	38	2	66
279	11	12×19	20×18+9×16	38	2	71
254	10	12×18	12×18+8×16	38	2	85
270	10 5/8	12×19	12×18+8×16	38	2	88
279	11	12×19	20×18+8×16	38	2	91
295	11 5/8	12×19	20×18+9×16	38	2	95
305	12	15×19	27×18+9×16	38	3	97
311	12 1/4	15×19	27×18+9×16	38	3	99
315	12 3/8	15×19	27×18+9×16	38	3	102
330	13	15×19	27×18+9×16	38	3	114
305	12	15×19	36×18	38	3	130
311	12 1/4	15×19	36×18	38	3	132
315	12 3/8	15×19	42×18	38	3	136
330	13	15×19	42×18	38	3	140
343	13 1/2	15×19	42×18	38	3	145
350	13 3/4	15×19	44×18	38	3	148
356	14	15×19	44×18	38	3	150
368	14 1/2	15×19	40×19	38	3	156
375	14 3/4	15×19	40×19	38	3	160
381	15	15×19	40×19	38	3	164
381	15	15×19	40×19	38	3	237
391	15 3/8	15×19	40×19	38	3	244
413	16 1/4	15×19	44×19	38	3	232
435	171/8	18×19	44×19	38	3	282
438	17 1/4	18×19	44×19	38	3	282
445	17 1/2	18×19	44×19	38	3	282
451	17 3/4	18×19	44×19	35	3	289
457	18	18×25.4	47×19	35	3	295
464	18 1/4	18×25.4	47×19	35	3	299
483	19	20×25.4	57×19	35	3	330
508	20	20×25.4	61×19	35	3	342
483	19	20×25.4	57×19	35	3	330
508	20	20×25.4	61×19	35	3	342
560	22	16×25.4	50×25.4	35	4	523
578	22 3/4	16×25.4	50×25.4	35	4	505
610	24	16×25.4	59×25.4	35	4	545
660	26	24×25.4	69×25.4	35	6	610
610	24	16×25.4	59×25.4	35	4	545
660	26	24×25.4	69×25.4	35	6	608
724	28 1/2	24×25.4	69×25.4	35	6	990
737	29	24×25.4	69×25.4	35	6	980
762	30	24×25.4	73×25.4	35	6	1020
864	34	24×25.4	96×25.4	35	6	1200
914	36	24×25.4	108×25.4	35	6	1280

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