Made of material, and practical to use. -coated hole saws are suitable for drilling holes in jewelry, gemstones, glass, marble, tiles or granite. 30 drill bit. Drilling speed: drilling per second.
eBay
Application: glass tile, ceramic tile, ceramic, jade, cobblestone, marble. Shank type: 10mm thread. Process: brazing diamond. Product information：.
eBay
Attributes:*Drilling Diameter: 22mm / 0.87"*Working Depth (Max .): 58mm / 2.28"*Female Thread Size: M10 x 1.5*Total Length: 68mm / 2.68"*Material: Sintered Diamond, Carbon Steel*Adapter Male Thread Size: M10 x 1.5*Adapter Shank Size: 9.5mm x 25mm / 3/8" x 1" (D*L)*Total Length of Adapter: 44.5mm / 1.75"*Adapter Finish: BlackeningPackage Content:*1pcs x Diamond Core Drill Bits*1pcs x Arbor AdapterApplications & Features:--- Achieving precise and clean holes is a breeze with our diamond drill bits. The diamond bit provides effective cutting power, allowing you to create accurate holes without chippingor cracking. Whether you are installing fixtures, creating artwork, or working on intricate designs, these drill bits deliver professional-grade results.
eBay
Diamond core drill bit is sintering with diamond grain, which has the characteristic of high hardness and wear-resistant, can drill smoothly with no broken edges for a long time.Each Diamond drill bits are well packed in a single plastic box for easy storage and convenient to carry out.Diamond hole drill bit can be used as wet drilling or dry drilling according to your work requirements.Great to drill on a variety of materials, including porcelain tile, ceramic tile, stone, ceramics, masonry brick, quartz, glass, marble, and so on.Diamond hole saw set can be installed on hand drills, electric drills and bench drills.Note: This porcelain drill bit is not suitable for drilling on wood or metal. Adding water or lubrication when drilling can prolong working life.
eBay
eBay
1 piece of special made core bit adapter. It can help to change the threaded from 1 1/4" UNC to 5/8"-11w. When you install this adapter on the 1 1/4" UNC threaded drilling machine, you can use 5/8"-11w threaded tool.
eBay
Core drill made of HSS-XE high-alloy special steel for drilling in difficult materials. The core drills feature a unique and patented DURABLUE coating for extreme hardness and surface smoothness. This ensures maximum service life, even under unfavorable conditions such as overhead or dry drilling. The core drills are manufactured using a stepwise hardening process, resulting in extremely hard cutting edges (68 HRC) and a simultaneously flexible drill bit. Made with full grinding technology for increased performance, reduced friction, and extended service life. * Working diameter: 30.00 mm * Working length: 55.00 mm * Material: HSS-XE * Coating: DURABLUE * Shank: Nitto/Universal 19mm (3/4") * Clockwise rotation
eBay
Drilling speed: drilling per second. Gem drill bits, drill bits for stone jewelry. 30pcs jade punching needle. Drilling depth: 15mm depth. Quantity: 30 pieces.
eBay