Functions: Choose molten silica as the main raw material, made using modern ceramic processing technology. Mainly used in dental alloys, platinum, gold, silver, copper brass and other high temperature hot melt alloys. High temperature above 2800 degrees. High purity and high strength, durable to use. High heat resistance, high shock resistance and corrosion resistance. Technical data: Crucible pliers Material: Stainless Steel Overall Length: 25 cm / 10 inches Color: Silver Net weight: 310g Cylindrical graphite Outside diameter: 40 mm / 1,57 inch Inner diameter: 30 mm / 1,18 inch Total height: 40 mm / 1,57 inch Inner height: 35 mm / 1,38 inch Square graphite Bulk density 1,82 g / cm3 Electrical Resistivity 9 μ Ω m Bending strength 45 Mpa withstand compression 65 Mpa Ash 0,1% particle 43 um （0,043 mm） Size: 7,2 x 5,7 x 1,2 cm / 0,28 x 0,22 x 0,05 inches Quartz melting crucible Capacity: 150g Material: Quartz Outside diameter: 57 mm / 2,24 inch Inner diameter: 43 mm / 1,69 inch Height: 20 mm / 0,79 inch Depth: 15 mm / 0,59 inch Net weight: approx. 40g The package includes: 1 x Quartz Crucible 1 x Pliers 1 x Square Graphite 1 x Cylindrical Graphite