What's the difference between the BLACK and SILVER ESPRO™ Dillinger Tampers?

Silver dillinger tampers are vacuum hardened - they are about 3 times harder than a normal tamper. Black dillinger tampers are vacuum hardened and then have a diamond-like-coating applied - they are about 5 times harder than a normal tamper. When we say dillinger tampers are tougher than nails, we mean it! 

Bruce Constantine