7 Pack Ceramic Quartz Crucibles with Pointed Tweezers,Crucibles Crucibles Melting Dishes Ceramic Casting Torch Melt Jewelry Gold Silver 100/150/250/400g/500g

Description

Specifications: Capacity:100,150, 250g, 400g,500g Material: Quartz Silica Five size as bellow: Crucible Bowl(100g): Outer Diameter: 52 mm; Inner diameter: 45mm; Height: 21mm; Net weight:approx 30g Crucible Bowl(150g): Outer Diameter: 60 mm; Inner diameter: 47mm; Height: 25mm; Net weight:approx 36g Crucible Bowl(250g): Outer Diameter: 70 mm; Inner diameter: 60mm; Height:25mm; Net weight:approx. 52g Crucible Bowl(400g): Outer Diameter 75 mm; Inner diameter: 65mm; Height: 32 mm; Net weight: approx. 80g Crucible Bowl(500g): Outer Diameter: 83 mm; Inner diameter: 70 mm; Height: 36 mm; Net weight: approx. 94g Unit conversion: 1mm = 0.0393inch Package included: 5 X Quartz Silica Melting Crucible 2 X Tweezers Note: Before the gold and silver melt, borax should be placed at the bottom of the bowl to prevent the gold and silver from melting and sticking to the bottom. The melting bowl is easy to absorb moisture, and it is preheated and gradually heated before use to prevent water from chilling and bursting.