20Pcs Lapidary Drill Bit 1mm Diamond Coated Lapidary Drill Bits

Durable Drill Bit: Lapidary drill bits made from diamond powder, high-quality, precise and durable to use. Applicable: The drill bit is suitable for drilling jewelry, ceramics, jade, onyx, glass, amber and semiconductor materials. Reduce Wobble: The rod of the drill bit can be cut short as needed to reduce wobble when drilling. Note for Use: When drilling with the drill, the speed of the drill press should not exceed 6000 rpm, no force pressure of more than 1kg should be used, and please use cold water to cool down when drilling. Re-Trimming: If you use the drill bit for many times, it will not be very sharp than the first time using.You could cut a little the top of it with plier, it will become sharp again.

Order Processing: After your payment is authorized and verified, we will start processing your order and this process can take from 1 to 2 business days, so please be patient with us. If we are unable to process your order due to inaccurate or incomplete payment or incorrect address information, your order processing may be delayed.

Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

FREE RETURNS on all orders!
The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.