Material:SKH51/HSS/1.3343/M2

Hardness;61-63HRC

Length:within 300mm

Coaxiality: 0.01mm

Max. precision; 0.005mm

Material;SKD61/H13/1.2344 with Nitride

Internal Hardness:38-42HRC

Surface Hardness：HV900 and higher

Length:1000mm and lower

Coaxiality:0.06mm

Max.,precision 0.01mm

The internal holes of these products have been subjected to precision grinding and rigid control to ensure proper fitness with ejector pin and core as well as high compatibility