Standards: IS 2720 (PART V), BS 1377-2 , ASTM D 4318
Specification: same as hand operated liquid limit but fitted with a motor geared down to give approximately 120 rpm. Suitable for operation on 230 V A.C., Single Phase, 50 Cycles.
Spares : Casagrande grooving tool. ASTM grooving tool, height block, 1cm high.