12-1/4 Roller Bits For Hard Rock Drilling Core Barrel Tools

Specification of Roller Bits

Size	TC Bit Dia.(mm)	TC Bit No. (PCS)	TC Bit Height(mm)	Dia. of Roller(mm)	Height of Roller(mm)	Remarks
8-1/2’	13	42	7	134	83	Both Welding and holder type are available
	13	55	7	130	83
	14	42	9	138	83
	14	55	9	134	83
	15	45	8	141	83
10-1/2’	17	50	11	170	98
12-1/4	14	75	9	186	130

Company Profile

Hunan Kellyway Machinery Co., Ltd was founded by the main team which is with up to ten years’ experience on foundation works and piling machinery. Kellyway is committed to manufacture and supply most reliable and highest cost-performance products for piling works including Kelly Bars, Drilling Tools and Drilling teeth. Kellyway is working on provide the one-stop piling solutions for our domestic and global customers and we are dedicated to be your best partner for your piling works from China.

1.Packing type:wooden case,also be packaged according to customer requirements.

2.Modes of transportation:by sea, by air or land transportation,Of course,a small amount can also by Express.

1.We will keep track of each customer to get the feedback of product quality and service. And we will make an amendment according to your feedback.
2.If the product size is wrong, we will send the right one freely.
3.We guarantee the high quality. Please feel free to contact us if you found any damage. We will solve the problems ASAP.

Company Profile

Hunan Kellyway Machinery Co., Ltd was founded by the main team which is with up to ten years’ experience on foundation works and piling machinery. Kellyway is committed to manufacture and supply most reliable and highest cost-performance products for piling works including Kelly Bars, Drilling Tools and Drilling teeth. Kellyway is working on provide the one-stop piling solutions for our domestic and global customers and we are dedicated to be your best partner for your piling works from China.

1. What is the quality control for your products?

Answer: All of our production are in lines of API rules and ISO9001:2015 strictly, from signing contract , to raw materials, to each production processes, to product finish, to after-sale service, each processes and sections are in accordant with standard.

2. About lead time,payment terms, delivery ?

Answer: We always have regular models available in stock, prompt delivery is one of our advantages. Mass production depends on quantity of order.

We accept all regular payment terms including L/C, T/T, etc.

We are nearby airport and seaport of Shanghai, Tianjin, Shenzhen , Qingdao, fast and very economical inland charges.

3. Can you produce according to special requirement?

Yes, we can produce products as required.

4. After Sale Services:

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

b. Technical Support will be available in any time

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