New designed tapered button bits as follows:

钎头直径 Diameter		合金数量×直径 No×button diameter		水孔数量 Flushing hole		重量 Weight approx （Kg）	金泉型号 JINQUAN P/N
毫米 mm	英寸 inch	芯齿 Front	边齿 Gauge	正 Front	侧 Side
38	1 1/2	1×9	3×9	1	1	0.39	1431-38723.3-19/39-45-53
40	1 37/64	1×9	3×9	1	1	0.40	1431-40723.3-19/39-45-53
42	1 21/32	1×9	3×9	1	1	0.43	1431-42723.3-19/39-45-53
43	1 11/16	1×9	3×9	1	1	0.43	1431-43723.3-19/39-45-53

In the gold, silver, copper & iron ore sites of Henan Province, testing results show that, our tapered button drill bits’ lifespan increased 15%-30% or more than competitors. Jinquan brand tapered button bits have been highly recognized by customers, reached a long-term cooperation agreement, and received the first order of 50000 pcs. Surely we own enough confidence on obtaining more markets at these areas.

Product features:

Take high strength special steel, increase tooth force of tungsten carbide buttons, impact resistance and wear resistance improved.

Head structure changed, increase strength, reduce early failure.

Increase the taper length properly, improve the service life.

The special hot treatment of the bit body, broken rates reduced.