30pcs jade punching needle. Drilling speed: drilling per second. Gem drill bits, drill bits for stone jewelry. Drilling depth: 15mm depth. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Diamond Core Bit Drill Bits 20-65mm Hole Saw Cutter for Tile Ceramic Marble Tile. 1pc 6-152mm Diamond Drilling Core Drill Bits Hole Saw Cutter for Tile Ceramic. Diamond Drilling Core Bit Hole Saw for Tile Porcelain Marble 25-65mm Hole Cutter.
eBay
Thread:M22. Whether you start drilling in the upright position or dig deeply, you'll achieve a perfect hole in seconds. Quick and Easy Mounting:This drill bit allows for effortless mounting on a standard manual or fixed-core drilling machine.
eBay
eBay
Compatible Fit- Shank compatible with drill presses equipped with 3/4 in. Deep Cuts - Can be used to drill holes up to. 37in. (35mm) deep. Fast, Efficient, & Smooth Cutting - for Precision ground teeth decrease vibration, fast, and clean.
eBay
eBay
For versatile Size Options: This drill bit set includes sizes ranging from 6MM to 12MM, making it forIDEAL for various drilling tasks in materials such as granite, marble, and concrete. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Application It is mainly used for granite, quartz stone, artificial stone, etc. It can also be used for concrete, cement, marble, and many other materials. It can be mounted for use on hand grinders and angle grinders with 5/8"-11 threaded connections. Specification Material: Diamond, Steel, Iron Color: Blue Style: Modern Thread: 5/8"-11 Bit Diameter: 102mm/4.02in Bit Head Height: 10mm/0.39in Maximum Drilling Depth: 60-70 mm/2.36-2.76in Product Total Length: 100mm/3.94in Package Size: 12*12*12cm/4.72*4.72*4.72in Gross Weight: 0.75kg/1.65lbs Net Weight: 0.7kg/1.54lbs Package Included 1*Drilling Bit.
eBay