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These AJMRTC diamond drill bits are specially engineered for DIY craft lovers and smallscale gem processing work. Adopting premium highstrength base material with uniform diamond coating on working end, the drill bits can effectively drill holes on gemstone, glass, ceramic, shell, rock and other brittle hard materials. Compatible with most common hand drills and rotary power tools, no complicated auxiliary equipment is required for operation. Please run at low rotation speed and add proper cooling water during use to extend service life and prevent material cracking. Perfect for handmade jewelry production, handicraft DIY, stone carving and various home craftprocessing tasks to meet your personalized creation demands.
SpecificationsBrand: AJMRTC Material: Highstrength steel base with industrial diamond coating Shank Type: Standard round shank Applicable Tools: Hand drill, rotary power tool Working Object: Gemstone, glass, ceramic, shell, rock, brittle hard craft materials Suggested Operation: Lowspeed drilling with water cooling Application Scenarios: Gem processing, jewelry DIY, craft production, handmade carving