Tumari is an accomplished artisan specializing in handcrafted custom bows since 1988. His clientele spans professional musicians, collectors, and devoted enthusiasts who value both performance and aesthetics. With a commitment to excellence, Tumari studied advanced techniques under esteemed master bow makers such as Mr. Thomas Gerbeth in Vienna, Austria, honing a deep and precise understanding of the craft.

He works closely with each client to meet their individual artistic and functional needs, maintaining the highest standards of quality control and consistency throughout the bow-making process. To stay at the forefront of the field, Tumari regularly attends trade shows and industry events, integrating emerging trends and best practices into his work.

He is also the proud owner of Sharon Violin Shop, founded in 2003 and located in Santa Monica, California. There, he not only crafts and restores bows but also offers expert services in rehairing, deflection repair, camber correction, and the restoration of broken bow heads and mortises. His dedication to innovation led him to invent a specialized tool and proprietary technique for bow rehairing—a testament to his ingenuity and commitment to the evolution of his art.