3 Inch Dry Drill Core Bits with Diamond Aligned Segment for Brick Concrete Masonry 5/8"-11 Threaded

Product Description

Product Description
Wide Application --Diamond drill bit are worked great for dry drilling holes through Granite Marble Hard Stone Reinforced Concrete Brick Block Counter Top,Using water could prolong the lifetime Super Quality Raw Material --Using laser welded technology,improve the performance of segments,avoid segments off during drilling process.The vacuum brazing protective layer on the surface of the core steel offers clean cut & steel core protection Fast and Smooth Drilling --Creates a fast and stable drilling, you could drill smoothly with no broken edges Machine --angle grinder (Pay Attention! If you drill through thick granite ,we recommend you to add enough water to help cooling the bits,which could prolong the lifetime)

TESTING REPORT
Concrete Hardness: C40 ,Core bit diameter: 63mm
GRADE	Normal Quality	Good Quality	Higher Quality	Top Quality
Minute /Hole	4.20	4.30	3.50	4.20
Steel bar time	40 seconds	48 seconds	38 seconds	48 seconds
Steel bar diameter	18mm	18mm	18mm	18mm
Steel bar Quantity	4	4	4	4
concrete thickness	250mm	250mm	250mm	250mm
drilling holes	5	5	5	5
total segment height	10mm	11mm	11mm	11mm
left of segment height	7.5mm	9mm	9.5mm	10mm

Packaging & Shipping
Payment Term
1) Accepting T/T, L/C, and other payment request can be discussed.
2) 100% T/T advanced for order amount less than USD10,000.
3) 30% deposit, remain balance should be paid 3 days before shipment
for order amount more than USD 10,000.
4) Normally deliver within 7 days after payment, large quantity order
should be discussed.
5) Less than 45KG, we recommend sent by express - EMS, DHL, TNT, FedEx,
Ups. More than 45KG, we recommend sent by air or sea. Our Advantages
1) No Any MOQ Limited
2) Accept OEM.
3) Good After Sale Services:
Our experienced expert will give technical recommendation according our clients' product line, Modifying the machine parameters, such as sequence, speed, etc. to acheive the best performance. We also can send after sale expert to clients' product line and optimize the product line.

1.Are you a manufacturer or trading company?
We are a 10 years manufacturer.
2.How to prove your quality?
We use E6 diamond,Dipea steel wire, passed ISO9001 and SGS,strict quality control and skilled workers.
3.What should I do if the products is not suitable for the market?
Giving us the detailed report first,then we analyze the reason,try to find the solutions.
If it is our problems,we will give you new products.
4.Do you provide free samples?
Small sample is welcomed.But,usually we don't provide free samples.
5.Can you provide OEM/OEM services?
Yes, if you need.

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