Bit holders from Zephyr Fastener Tools offer the flexible use of insert bits with a variety of tools used throughout the aviation industry and in automotive repair. Many Zephyr bit holders are available in magnetic and quick release forms. This allows for the use of a variety of insert bits in power tool applications. With Zephyr bit holders you get value, flexibility and durability. The quality of Zephyr bit holders begins with their selection of high grade raw materials like high grade tool steel. Each Zephyr bit holder is manufactured to the tightest tolerances in the industry.