Wera Titanium PH Bit 851/1 TiN PH3 x 25 mm – Phillips screwdriver bit, model 05480173001

Wera Titanium PH Bit 851/1 TiN PH3 x 25 mm is a Phillips (PH) screwdriver bit with a 25 mm working length and a titanium nitride (TiN) coating. It is designed to fit PH3 fasteners and to be used in manual screwdrivers, bit-holders and compatible power tool adapters. The TiN coating increases surface hardness and improves wear resistance, extending the service life of the bit in repetitive assembly, repair and maintenance tasks.

Advantages

The TiN coating provides enhanced abrasion resistance and a longer usable lifetime compared with uncoated bits, while maintaining precise tip geometry for reliable engagement with Phillips heads. The 25 mm length balances access and control for handheld use and bit-holder operation. The bit is manufactured to fit standard Phillips PH3 profiles, ensuring consistent torque transfer and reduced cam-out when matched with appropriate screwdrivers and fasteners.

Suitable for

• Driving PH3 Phillips screws in furniture assembly and cabinetry
• Maintenance and repair tasks on appliances and equipment that use PH3 fasteners
• Installations where a short, controlled bit length is required for access or stability
• Use with manual screwdrivers, bit-holders and compatible power tool adapters

Key specifications

• Tip type: Phillips (PH) size PH3
• Working length: 25 mm
• Surface treatment: Titanium nitride (TiN) coating for increased hardness
• Intended use: Handheld and bit-holder applications; compatible with powered drivers via adapters
• Material properties: Hardened steel core with wear-resistant coating for improved durability

How to use

Select the PH3 bit when matching Phillips screws of the corresponding size. Insert the 25 mm bit securely into a compatible bit-holder, manual screwdriver or adapter. Apply steady axial pressure and controlled torque to engage the screw head; avoid excessive torque that may damage the fastener or bit. For powered drivers, use appropriate speed and torque settings and ensure the bit is seated fully in the chuck or holder before operation.

Usage recommendations

Inspect the tip for wear before use: replace the bit if the tip shows rounding or deformation. Clean debris from the bit and screw recess to maintain optimal contact. Store bits in a protective holder to prevent edge damage and to prolong the life of the TiN coating.