Koki Holdings Co. Ltd. engages in the manufacture and sale of power tools, outdoor power equipment, and life-science instruments. It operates through the following segments: Power Tools and Centrifuges & Processing Equipment. The Power Tools segment provides metalworking, woodworking, cordless and construction power tools; pneumatic tools, woodworking machines, outdoor power equipment, gardening tools, household power tools, dust collectors, measure laser tools and accessories. The Centrifuges & Processing Equipment segment provides ultracentrifuges, high-speed refrigerated centrifuge, micro centrifuge, and large-scale continuous flow ultracentrifuge equipment. The company was founded in 1918 and is headquartered in Tokyo, Japan.