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Diamond Grit | 40/45# coarse sand is the best 60/70# fine sand is also available. Relatively speaking, the service life is shorter, but the price is also cheaper.
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Function and Used For |
Designed to enlarge, shape, and round bevel existing holes in porcelain, hard ceramic, granite, stones, marble, etc. Also easily create round shape indentation to accommodate pipes or electric wire lines.
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Premium Material |
JOWIN Diamond countersink drill bit is made of premium diamond and durable metal, high strength and hardness, very useful to improve the edge finishing of exposed holes, provide a smooth, high-end finish. |
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1. Are you a manufacture or a trade company? Answer: We are a professional manufacturer. Warmly Welcom comming visit. | 4. How about the payment, Mini. Quantity and delivery methods? Answer: 1. Payment: T/T, L/C, Western Union, Paypal 2. Min. order quantity: 1 piece. 3. Transportation: By DHL/TNT/Fedex express, air transportation, sea and train.
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2. How to order the products? Answer: Send the inquiry with detail item description or with Model number, it is better attaching some photos for better understanding. If there is no packing demand we take it as sea-way packing. | 5. Quality Control Answer: We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. |
3. About lead time? Answer: The lead time depend on quantity of order. Normally for test order, we will finished production within 3-7days. And for regular order, we can arrange shipment within 7-15days. And for customized diamond products, it may take longer, about 20-30days.
| 6. After Services Answer: 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 |
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