·Magnetic Nut Driver Set - LLNDEI magnetic nut driver set contains all the most common sizes. Includes 7 Metric (8/10/13/14/16/17/19mm) & 4 SAE (5/16"-7/16") Sockets | Features High-Demand 14mm Deep Driver | Compatible w/ Impact Drills & Socket Wrenches. There is a Metric nut driver set (including 5mm, 5.5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm) and an SAE nut driver set (1/4", 9/32", 5/16", 11/32", 3/8", 1/2", 7/16", 9/16").

·Special Nut Driver Set - The impact nut driver set contains a wing nut driver (17mm), a quick - release extension (1/4"), a universal joint (with sizes of 1/4", 3/8", 1/2") and a pivoting nut setter (1/4").

·Suitable for 1/4" Hex Shank - This is an ideal nut driver set for impact drills with keyless spindles. It enables a great smooth installation and release for the keyless spindle lock chuck of electric drills, maximizing your comfort during every work experience.

·Durable and sturdy Materials - The impact nut drivers are made of Cr - V steel, which enhances their durability and provides users with a much longer service life. The impact driver bit sets are crafted from S2 alloy steel, giving them higher hardness. With an anti - slip design, this reduces your need for additional purchases.

·Service Guarantee - High-contrast size marking is clearly permanently laser etched and easy to read, even in low light, used in any difficult repair scene.