Simpson Thacher & Bartlett has advised global PE firm Kohlberg Kravis Roberts (KKR) on its $1.3 billion acquisition of power-tool maker Hitachi Koki, which was advised by Mori Hamada & Matsumoto.

Nishimura & Asahi is also part of the deal, acting as local counsel to KKR.

According to Reuters, the sale will allow Hitachi – Hitachi Koki’s parent company – to concentrate on its main business concerns, such as infrastructure.

The deal is KKR’s second billion-dollar deal in Japan in three month. In November, the U.S.-based PE firm bought Calsonic Kansei, Nissan Motor’s auto parts manufacturing unit, for $4.5 billion.

Tokyo-based partner David Sneider led the STB deal team.