explain:
1.10 The most popular metric sizes are 1.5mm(0.06in), 2mm(0.08in), 2.5mm(0.10in), 3mm(0.12in), 4mm(0.16in), 5mm(0.20in), 6mm(0.24in), 8mm(0.31in), 10mm(0.39in), and 12mm(0.47in). Drill bit handle: 6.35mm/1/4 ", length: 100mm (3.94").
2. High quality: Heat treated, durable, high hardness, not easily worn.
3. The professional hexagonal drill bit set is made of S2 alloy steel, which is finely crafted and sturdy like a nail: the hardness can reach HRC60 degrees. The hexagonal wrench set is suitable for electric drills, electric screwdrivers, and manual screwdrivers with speed control devices.
Material: S2 steel
Color: Silver
Handle: 1/4 inch hexagonal
Length: 100 millimeters
Dimensions: 1.5mm(0.06in), 2mm(0.08in), 2.5mm(0.10in), 3mm(0.12in), 4mm(0.16in), 5mm(0.20in), 6mm(0.24in), 8mm(0.31in), 10mm(0.39in), 12mm(0.47in)
Quantity: 8/10 pcs The package includes:
8/10pcs screwdriver heads

Note:
Due to various factors such as monitor brightness and lighting intensity, the actual color of the item may differ slightly from the images displayed on the website.
2. Please allow for slight manual measurement deviations in the data.