Durable screwdriver bits made of high-quality S2 alloy steel, which ensures a longer service life for long and intensive work. The screwdriver bits have a slim profile that allows access to hard-to-reach areas. Ratcheting mechanism with 52 ratchets Packed in a handy storage box that makes it easy to transport and store screwdriver bits. Attachment 1/4 inch, Weight: 0.007275254646 Pounds, Manufacturer: Hoegert Technik