![SPEX™ SamplePrep Stainless-Steel Grinding Balls, 4 - 11 mm Diameter Grinding ball; Diameter: 0.16 in (4 mm) SPEX™ SamplePrep Stainless-Steel Grinding Balls, 4 - 11 mm Diameter | Fisher Scientific SPEX™ SamplePrep Stainless-Steel Grinding Balls, 4 - 11 mm Diameter Grinding ball; Diameter: 0.16 in (4 mm) SPEX™ SamplePrep Stainless-Steel Grinding Balls, 4 - 11 mm Diameter | Fisher Scientific](https://assets.fishersci.com/TFS-Assets/CCG/SPEX-SamplePrep/product-images/2150.jpg-650.jpg)
SPEX™ SamplePrep Stainless-Steel Grinding Balls, 4 - 11 mm Diameter Grinding ball; Diameter: 0.16 in (4 mm) SPEX™ SamplePrep Stainless-Steel Grinding Balls, 4 - 11 mm Diameter | Fisher Scientific
![304 stainless steel ball, round ball, diameter: 40mm-60mm precision stainless steel ball, hard ball, grinding ball, forged steel ball, cast ball : Amazon.co.uk: Business, Industry & Science 304 stainless steel ball, round ball, diameter: 40mm-60mm precision stainless steel ball, hard ball, grinding ball, forged steel ball, cast ball : Amazon.co.uk: Business, Industry & Science](https://m.media-amazon.com/images/I/515QUp8KddL._SL1500_.jpg)
304 stainless steel ball, round ball, diameter: 40mm-60mm precision stainless steel ball, hard ball, grinding ball, forged steel ball, cast ball : Amazon.co.uk: Business, Industry & Science
![Solid 304 Stainless Steel with Threaded Steel Ball, M20 Ball Head Screw, Diameter: 40mm-60mm, semi-Threaded Steel Ball, Blind Hole Steel Ball : Amazon.co.uk: Business, Industry & Science Solid 304 Stainless Steel with Threaded Steel Ball, M20 Ball Head Screw, Diameter: 40mm-60mm, semi-Threaded Steel Ball, Blind Hole Steel Ball : Amazon.co.uk: Business, Industry & Science](https://m.media-amazon.com/images/I/61a9WMqyZ0L._SL1500_.jpg)