CHROME VANADIUM STEEL: Made of high hardness chromium vanadium steel, the hollow screw tip is wear-resistant and used.
PLASTIC STORAGE BOX: The hollow screwdriver bit is placed in the plastic storage box that holds it in place to prevent losing it, which is convenient to carry with you.
ELECTRIC SCREWDRIVER: The hollow screwdriver bit can be installed on the power rotary tool, which is considered an electric screwdriver.
Tip Size: The hollow screwdriver bit is divided into five types, including T9 star bits, 2mm hex bits, No. 1 three-wing bits, No. 4 wrench bits, and No. 6 cross bits, etc.
VARIOUS CHOICES: You’ll choose from these different types of tips, which can typically suit your different needs.

Specification:
Material: Chrome-vanadium steel
Star Tips: T9, T10, T15, T20, T25, T27, T30, T35, T40
Hex Tips: 5/64:, 3/32", 7/64", 1/8", 9/64", 5/32"
Hex Tips: 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm
Three-wing tips: #1, #2, #3, #4
Key Tips: #4, #6, #8, #10
Cross Tips: #6, #8, #10
Package Weight: Approx. 224g

Package List:
32 * screwdriver bits
1 * Extension rod