Wera Extra Hard BiTorsion Phillips Screwdriver Insert Bits

Wera Professional Extra Hard BiTorsion Phillips Screwdriver Insert Bits

• High quality professional screwdriver insert bit
• BiTorsion technology absorbs maximum loads - increases tool life. Ideal for use with the BiTorsion bit adaptor - ideal system for all wood fastenings
• Extra hardness for better wear resistance
• Best for driving screws into wood
• Selected material withstands high torque loads
• Phillips cross head tip, 1/4" hexagon drive
• Wera article 851/1 BTH (25mm) and 851/4 BTH (50mm)