BEST BST-9909 7 in 1 Adjustable Torque Screwdriver Set S2 Steel Bits Aluminum Handle for Electronics Repair

• 【Adjustable Torque Control】Precision torque adjustment from 0.35Kgf to 0.55Kgf prevents over-tightening and protects delicate screws from damage.

• 【Premium Aluminum Handle】Durable aluminum alloy construction provides excellent corrosion resistance, wear resistance, and comfortable grip feel.

• 【360° Rotating Top Cap】Built-in noise-reducing bearings enable smooth 360-degree rotation for enhanced operation experience during assembly and disassembly.

• 【Quick-Change Bit System】4mm hexagonal interface allows for easy bit replacement and supports multiple precision operations with secure attachment.

• 【Professional S2 Steel Bits】High-hardness S2 tool steel bits provide superior durability and wear resistance for long-lasting precision work.

Specifications:

• Model: BST-9909
• Torque Range: 0.35Kgf - 0.55Kgf
• Handle Length: 107mm
• Handle Diameter: 19mm
• Bit Length: 40mm
• Bit Shank Diameter: 4mm
• Handle Material: Aluminum Alloy
• Bit Material: S2 Steel
• Bearing Type: Built-in Ball Bearings
• Bit Interface: 4mm Hexagonal Quick-Change
• Number of Bits: 6 pieces
• Bit Types: Pentalobe P17, Slotted 1.5mm, Phillips 0.8mm, Torx T2, Y-type 0.6mm, Phillips 2.5mm