Features 1、33pcs screwdriver bit set, including 1pcs connecting rod and 32pcs screwdriver bits, easy to operate and simple to use. 2、Forged with 45 steel material, smooth and burr-free, with high hardness and toughness. 3、Longer connecting rod, with magnetic inside the connecting rod, strong adsorption of the bit, making the connection more stable. Specification 33pcs screwdriver bit set, including 1pcs connecting rod and 32pcs screwdriver bits, easy to operate and simple to use. Forged with 45 steel material, smooth and burr-free, with high hardness and toughness. Longer connecting rod, with magnetic inside the connecting rod, strong adsorption of the bit, making the connection more stable. Standard hexagonal opposite side 6.35MM (1/4" ) shank diameter, suitable for use on various tools such as electric/manual/pneumatic screwdrivers. Complete specifications, a variety of specifications can be used to meet diversified needs. Features: 33pcs screwdriver bit set, including 1pcs connecting rod and 32pcs screwdriver bits, easy to operate and simple to use. Bits are forged with 45 steel material, smooth and burr-free, with high hardness and toughness. Longer connecting rod, with magnetic inside the connecting rod, strong adsorption of the bit, making the connection more stable. Standard hexagonal opposite side 6.35MM (1/4" ) shank diameter, suitable for use on various tools such as electric/manual/pneumatic screwdrivers. Complete specifications, a variety of specifications can be used to meet diversified needs. Specifications: Name: 33pcs Screwdriver Bits Set Material: 45 Steel Type: solid bits set, hollow bits set (optional) Item size: 65 * 45 * 30mm / 6.55 * 1.77 * 1.18in Package size: 80 * 50 * 35mm / 3.15 * 1.97 * 1.38in Package weight: Solid bits set: 223g / 7.87ounce Hollow bits set: 220g / 7.76ounce Packing List: 1 * 33pcs Screwdriver Bits Set Package List 1 * 33pcs Screwdriver Bits Set