Screwdriver bit set KWB 122053 — 2 bits, PH3 cross, 50 mm, 1/4" shank

The KWB Screwdriver bit set 122053 contains two PH3 cross bits, each 50 mm long with a 1/4" (6.3 mm) shank. These torsion bits are designed for demanding screw applications and provide extended service life through a torsion zone that absorbs peak loads. Bits are made of TQ60 steel and feature a colour code for quick size identification.

Advantages

The maximum-length torsion zone allows controlled distortion of the bit tip under high torque to reduce breakage risk, while the Mega Grip Ribs minimise cam-out and protect both bit and screw. The TQ60 steel construction ensures durability for frequent use, and the 1/4" E 6.3 shank fits standard bit holders and drivers.

Suitable for

• Fastening and loosening large cross-head (PH3) screws
• Construction and carpentry tasks requiring higher torque and reach
• Maintenance and repair work with standard 1/4" bit holders

Key specifications

• Contents: 2 pieces (PH3)
• Length: 50 mm
• Shank: 1/4" (6.3 mm) E 6.3
• Material: TQ60 steel

How to use

Insert the 1/4" shank into a compatible bit holder or power driver, select the PH3 tip for the matching screw head and apply steady torque. Allow the torsion zone to flex under peak loads rather than applying sudden excessive force. Replace bits if the tip shows significant wear or deformation that prevents secure engagement with the screw.

Usage recommendations

Use these bits with drivers or holders rated for PH3 screws and avoid excessive side load. Store bits dry and clean to prevent corrosion; match the colour code to quickly identify the PH3 size when working on multiple fasteners.