NOVAZEN 1/4 Inch Hex Shank T10-T30 Magnetic Security Star Screwdriver Bits Set, 5 Pcs 150mm

Descriptions:These screwdriver bits are adopted of high quality S2 alloy steel, which is anti-impact and tough, great wear resistant. Magnetic head, so they can fixed on the screw firmly. Features:These screwdriver bits are magnetic head, so they can fixed on the screw firmly.Adopted of high quality S2 alloy steel, which is anti-impact and tough, great wear resistant.With 1/4" hex shank, they are widely used on electric screwdrivers, hand screwdrivers, electric drills, etc.This product includes 5 pcs security star screwdriver bits in different sizes, so is convenient to meet your varied requirements.Suitable for professional maintenance personnel, computer maintenance, camera maintenance, eyeglasses maintenance, instrument maintenance. Specifications:Material: S2 alloy steelHex shank size: 6.35 mm/(1/4") The total length: 150mm/5.91inchBit size: T10 T15 T20 T25 T30T10: 4.0mm T15: 4.5mm T20: 5mm T25: 5.5mm T30: 6mmHead type: security star Weight: 129g Package Included:5 x Screwdriver Bits