Hitachi recently announced the CM4SB2 110mm diamond cutter to replace the CM4SB and CM4SA2 models. The CM4SB2 features increased power (1320W, or 11.6A current at full load on a 120v circuit) and no-load rotation speed (11,500 RPM), which should help speed it through stone of all types.
It also features an improved armature coil that, Hitachi says, increases motor life by resisting vibration and dust, as well as an upgrade to Hitachi’s “mean green” new look.
Pricing is not yet available.
CM4SB2 Cutter [Hitachi Koki]