Eisen ES Series is package of pin gauges with handle. The handles significantly insulate against heat and reduce the time required for repeated measurements. Furthermore, there are three different handle configurations/dimensions, depend on the sizes of the pins. For the pin gauges in size up to 0.995 mm, the nominal sizes of the pins are indicated on the plastic cases. Meanwhile, for those in sizes 1.00 mm and larger, the nominal sizes are laser-engraved on the pin gauges. All pin gauges in the Eisen SS Series are 58 HRC or harder, and there are two different sets; Class-0 and Class-1.