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1.Increased penetration rate, 2.long service life; low drilling cost, 3.Excellent straghtness and hole clean quality, 4.ISO:9001 - details see: https://www.machineto.com/t38-mining-bits-thread-button-bits-atlas-copco-or-sandvik-10316962

T38 mining bits / thread button bits/ Atlas Copco or Sandvik is on powerful Drill Rigs and top hammers with a jump powerful drifter, the products are widely used in bench drilling, our products with comparative advantages of the more prominent cost-effective as the famous brand in the world, our products have been recognized as high-quality brand of rock-drilling tools made in China. A moderately abrasive type of bit, Ideal in medium to hard ground conditions where fast penetration is required and straightness is less critical. Button Bits are categorized by a variety of criteria: bit diameter, skirt length, skirt diameter, wall thickness, gauge clearance angle, face design and button insert types.

Diam		Tip size(mm)		Gauge button angle	No.of flushing holes
mm	inch	Gauge	Front		Side	Front
57	2.25	6×11	3×10	30	2	1
64	2.5	6×12	3×11	35	1	1
76	3	6×12	3×12	35	2	1
64	2.5	8×10	4×10	30	—	2
64	2.5	8×10	4×10	30	2	2
76	3	8×12	4×11	30	2	2
76	3	8×12	4×12	30	2	2
89	3.5	8×13	5×12	43	2	1
89	3.5	8×12	6×11	35	2	2
89	3.5	8×12	6×12	35	2	2
89	3.5	8×14	6×12	35	2	1
102	4	8×14	7×12	35	2	2
64	2.5	6×11	3×10	35	1	3
			1×10
64	2.5	6×12	3×11	35	—	3
			1×9
70	2.75	6×12	3×10	35	1	3
			1×10
70	2.75	6×12	3×11	35	—	3
			1×9
89	3.5	6×14	3×14	35	—	3
			2×9
89	3.5	6×13	3×13	35	—	3
			2×9
89	3.5	6×12	3×12	35	—	3
			2×9
64	2.5	8×10	4×10	30	1	4
			1×9
70	1.75	8×10	4×10	30	1	4
			1×9
76	3	8×12	4×11	30	1	4
			1×11
89	3.5	8×12	4×12	35	—	4
			2×10
102	4	8×12	4×12	35	—	4