2015 Hot Sale High Quality 

1.Tapered connection:4°. 6°. 7°. 11°. 12°.

2.Threaded connection:R22.R25.R28.R32.R38.T38.T45.T51.

3.Packing:wooden case or plastic box or as per your own requests.

4.Diameter: 32mm-41mm

5.Material:40Cr, 42CrMo.

The taper cross bits can be used under any rock drilling condition because of it's comprehensive adaptability.It is mainly used for diging into mine laneway and blasting holes in all drilling works matched with the taper drill rod. For different rock, we choose the different alloy to extend the working life of the taper cross bits. 

All the have to be reground at regular intervals to crush rock efficiently.We choose different material and size for the taper cross bits in order to adapt the different rock formations and working conditions.

The drilling tools are widely applicable to boring and drilling in the industries of stone-quarrying, 
mineral-quarrying, water conservancy, transport, military industry, geology and civil engineering, ect. 

We can design and produce different drilling bits according to customers' requirements.

Pictures for you

Packaging Details:

Ply-wooden boxes: Drill bits

Iron bundles: Drill rods

Delivery Detail:

Within 20 days after receiving your payment

Liaocheng Jinquan Construction Machinery Co.,Ltd (Formerly Jinquan (Golden Spring) Rock Drilling Tools Co., Ltd) was established in 1984, located in Economic Development Zone Of Liaocheng, Shandong Province, China. It belongs to the group company of Golden Spring Drilling Limited. We are one of the biggest production bases of all kinds of rock drilling tools, mainly produce "Jinquan" brand rock tools, including threaded button bits, tapered button bits, cross drill bits, chisel bits, down the hole DTH bits, DTH hammers, extension drill rod, MF rod, shank adaptors, coupling sleeves, conical shank cutter bits, pick holders, tricone bits, air compressor, drilling rigs etc. Now our manufacturing capacity has reached eight series and more than 500 types of products. They are widely used in quarrying, mining, road building, railways, highways, water well, hydroelectric power and other basic energy & civil construction projects.

 The information you may like to know before order:

1. Methods of Payment:

T/T (Telegraphic Transfer) or Western Union or L/C at sight

2. Handling time for an order 

 Based on order quantity, normally it takes 25 days for production. Only 2 or 3 days if we have stock on your request size.

3. Shipping way Sample order:

we suggest Courier express like DHL/UPS/TNT/FEDEX or by air Bulk order: we suggest by air or by sea.

4. Quality Control We have our own experienced QC. 

There will be strict inspection and testing for every order before shipping out.

5. After Services: 

1. Our sales team will response for your question within 24 hours (Holidays Excluded) 

2. Technical Support will be available in any time

3. Free replacement will provide once the failure confirmed caused by our product quality.