Cole-Parmer SamplePrep 8014A Agate Ball, 1/2" (12.7 mm); …
Replacement agate ball for grinding vial set 04576-68; Extremely high resistance to abrasion and very long wearing with moderate efficiency; Ideal for grinding and mixing samples when organic and metallic contamination are equally undesirable; Handmade from flawless Brazilian agate; Measures 1/2" (12.7 mm) in diameter;
