Screwdriver Bit Wera Bit PH Gr.2 25mm 851/1BDC BiTor diamond coated

Wera Bit PH Gr.2 25mm 851/1BDC BiTor diamond coated is a Phillips screwdriver bit with a 25 mm working length and a BiTor diamond-coated tip engineered to improve grip and reduce cam‑out. The bit is intended for use with compatible bit holders and power drivers, providing precise engagement with Phillips fasteners during assembly, maintenance and repair work where a durable, slip‑resistant tip is required.

Advantages

The BiTor diamond coating increases friction between the bit tip and the screw head, minimizing slipping and improving torque transfer. A precisely formed Phillips profile ensures reliable centring and repeatable engagement with screws. The short 25 mm length balances accessibility in confined spaces with sufficient reach, while robust manufacturing and material selection enhance longevity under frequent use.

Suitable for

• Assembly of furniture, cabinets and fixtures
• Maintenance and repair of appliances and electronic enclosures
• Automotive interior and trim fastenings
• General construction and installation tasks requiring Phillips screws

Key specifications

• Tip type: Phillips (PH) Grade 2
• Length: 25 mm working length
• Surface: BiTor diamond coating for enhanced grip
• Design: Short bit for improved control in tight spaces
• Compatibility: Suitable for standard 1/4" hex bit holders and compatible power drivers

How to use

Insert the bit into a compatible 1/4" hex bit holder or quick‑change chuck and secure it before applying torque. Position the bit centrally in the screw head to ensure correct engagement, then apply steady axial pressure while turning. For power drivers, set an appropriate torque and speed to avoid damaging the screw or workpiece. After use, inspect the tip for wear or coating damage and replace the bit when performance declines.

Usage recommendations

For best results, use the BiTor diamond coated bit with matched Phillips screw heads and avoid excessive lateral forces. When working with delicate materials, reduce torque settings and use controlled speed to prevent stripping. Store bits in a dry container to protect the coating and maintain performance.