{"product_id":"raytech-porcelain-balls-4mm-1lb","title":"Porcelain Balls 4mm Diameter-1 Lb Pack","description":"\u003cp\u003ePorcelain ball media in a 4 mm diameter for mass finishing and deburring of jewelry, castings, and fabricated metal parts. This micro-abrasive ceramic cuts, cleans, and leaves an extremely smooth surface that is bright but not mirror-reflective. A lighter alternative to steel shot, porcelain media is well suited for smaller vibratory bowls or rotary barrels where machine weight limits apply. Long service life and gentle action make it a smart choice for preserving fine details and delicate edges. Sold in a 1 lb pack. Use wet with a suitable detergent or burnishing compound.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4 mm diameter porcelain spheres for fine cutting and smoothing\u003c\/li\u003e\n\u003cli\u003eProduces a bright, non-reflective finish on metal surfaces\u003c\/li\u003e\n\u003cli\u003eCompatible with vibratory and rotary tumblers\u003c\/li\u003e\n\u003cli\u003eLighter than steel shot — ideal where machine weight limits apply\u003c\/li\u003e\n\u003cli\u003eVery long service life; gentle on delicate edges and fine details\u003c\/li\u003e\n\u003cli\u003eSold by the pound\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eMedia Type\u003c\/th\u003e\n\u003ctd\u003ePorcelain (ceramic) balls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish Result\u003c\/th\u003e\n\u003ctd\u003eVery smooth, bright (not mirror-reflective)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Processes\u003c\/th\u003e\n\u003ctd\u003eVibratory and rotary tumbling (wet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse With\u003c\/th\u003e\n\u003ctd\u003eWater and detergent or burnishing compound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003ctd\u003e1 lb (0.45 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCutting and cleaning castings and fabricated parts\u003c\/li\u003e\n\u003cli\u003eSmoothing metal surfaces prior to final polish\u003c\/li\u003e\n\u003cli\u003eLighter-weight alternative to steel shot where marring is a concern\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse wet with a small amount of detergent or burnishing compound.\u003c\/li\u003e\n\u003cli\u003eExpect longer cycle times compared to steel shot.\u003c\/li\u003e\n\u003cli\u003eRequires a brief break-in period; media develops a glazed surface after initial runs.\u003c\/li\u003e\n\u003cli\u003eFor best results, consider running a mix of sizes to improve media coverage and tumbling action.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Raytech","offers":[{"title":"Default Title","offer_id":43580252029142,"sku":"147.604","price":13.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/porcelain-balls-4mm-diameter-1-lb-pack-otto-frei.jpg?v=1719958166","url":"https:\/\/www.ottofrei.com\/it\/products\/raytech-porcelain-balls-4mm-1lb","provider":"Otto Frei","version":"1.0","type":"link"}