There are four main material: N: domestic cemented carbide (tungsten steel) A: Taiwan imported hard alloy (tungsten steel) AA: Taiwan imported superfine grain tungsten steel material AAA: German imported superfine grain tungsten steel material.

Diameter: 1-20mm
Overall Length: 50-150mm
 Properties: High wear resistance

Feature:
1.Factory direct sales, best price-flat Bottom Engraving Bit,Engraving Cutter,Engraving End Mill.         .
2. High precise edge tolerance .
3. Very nice work surface finish  .
4.Minimize fracuting at high spped by high TRS ultra fine WC grade.
5,.Strict quality control,100% inspection.
6. Both OEM and ODM for engraving end mills and package are available.
7. Short lead time.