Hollow Shank with Pass-Thru Nut Driver Set Tip Size 1/2 in 1/4 in 11/32 in 3/8 in 5/16 in 7/16 in 9/16 in Bolt Clearance 7 1/4 in Shank Length 3 in Ergonomic SAE Hollow Shank with Pass-Thru Fastener Holding No For Fastener Size 1/4 in 5/16 in 11/32 in 3/8 in 7/16 in 1/2 in 9/16 in ESD Safe No Insulated No Magnetized Tip Yes Non-Magnetic No