Smooth Jaws: Optimal for diverse rock types, from hard to soft, delivering a slightly finer grind than their serrated counterparts. 

Serrated Jaws: Designed primarily for hard rocks, these provide an unmatched grip and ensure no residues in the serrations. Soft materials might experience minor groove retention.

 If you are a first-time user of our machines, we recommend starting with both types to discover which suits your needs best. 

When it comes to Wear Resistance: 

Alloy-1: This chrome/molybdenum steel variant includes 1.2-1.7% molybdenum. 

Alloy-2: Chrome steel, distinguished by its lack of molybdenum. 

Manganese Steel: A durable option. 

Carbon Steel: Notable for its case-hardened quality. 

Note: Information provided pertains solely to wear resistance and does not address contamination concerns.