Wera 855/4 IMP DC PoziDriv PZ1 Diamond Coated Impact Bit, 1/4 inch Hex, 50 mm 05073961001

Cam-out and premature wear are the two biggest frustrations when driving PoziDriv screws under high torque. The Wera 855/4 IMP DC bit eliminates both: its diamond-coated tip bites into the screw recess, while the torsion zone absorbs impact peaks so the bit lasts far longer in impact drivers. This is the PZ 1 size, 50 mm long, on a standard 1/4" hex shank.

Who is it for

Professional tradespeople, cabinet makers, and serious DIYers who use impact drivers and demand bits that hold up. If you regularly drive PoziDriv screws in hard materials or high volumes, this bit will outlast conventional bits many times over.

Main features

• Diamond coating on the tip for exceptional grip and reduced cam-out
• Torsion zone engineered for impact drivers, absorbing peak loads
• High-alloy tool steel body for maximum durability
• 1/4" hex shank fits all standard bit holders and impact drivers
• PZ 1 size for precise fit in PoziDriv screws
• Self-service pack (SB) with one bit

Specifications

• Bit type: PoziDriv (PZ)
• Bit size: PZ 1
• Shank type: Hex
• Shank size: 1/4 inch (6.3 mm)
• Length: 50 mm
• Material: High-alloy tool steel
• Coating: Diamond
• Impact rated: Yes
• Torsion zone: Yes
• Reduced cam-out: Yes
• Packaging: Self-service pack (SB)
• Quantity: 1 piece
• Manufacturer series: 855/4 IMP DC

Tips

For best results, use this bit in an impact driver rather than a standard drill/driver. The torsion zone is designed to flex under impact, so it may not perform optimally in a non-impact tool. Keep the bit clean and dry; the diamond coating is extremely hard but can be damaged by harsh chemicals. Store in a dry place to prevent corrosion of the steel body.