Product Overview
The 851/1 BDC PH 1 x 25 mm is a bit for Phillips screws (PH1) from Wera, designed for screwdriving with a 1/4" hexagon drive. The bit combines a BiTorsion torsion zone and a diamond-coated tip to reduce cam-out and absorb peak loads during torque impacts.
Function and Design
The bit features a BiTorsion torsion zone, which, according to the manufacturer, dissipates kinetic energy during peak loads. This minimizes the risk of premature breakage and contributes to an extended service life. The diamond-coated tip ensures a more secure grip in the screw head by "biting" into the material, reducing the risk of the bit slipping out (cam-out). The drive is 1/4" hexagon and is compatible with Wera connecting series 1 (DIN ISO 1173‑D 6.3).
Material Properties and Practicality
- Diamond coating on the bit tip: improves point grip in the screw head.
- BiTorsion torsion zone: dissipates peak forces and reduces wear.
- 1/4" hexagon drive: fits holders according to DIN ISO 1173‑D 6.3 (Wera connecting series 1).
- Take it easy tool finder: color coding according to profile and size for quick identification.
The description is based on product information from Wera; the specified combination of diamond coating and torsion zone is intended to improve precision and service life during screwdriving, especially in situations where cam-out and peak loads occur.
Typical Applications
Wera specifies the use of this bit in power tool applications and in situations where work involves sensitive materials or surfaces requiring precise contact between the bit and the screw head. The combination of a diamond tip and BiTorsion makes the bit suitable for tasks where minimizing wear on both the bit and the screw head is desired.
Specifications
- Article Name: 851/1 BDC PH 1 x 25 mm
- Manufacturer: Wera
- Manufacturer Part Number: 05056400001
- EAN: 4013288033970
- Size: 25 x 7 x 7 mm
- Blade Length: 25 mm
- Weight: 4 g
- For: Phillips screws (PH1)
- Coating: Diamond coating on the bit tip
- Feature: BiTorsion torsion zone
- Drive: 1/4" hexagon (Wera connecting series 1, DIN ISO 1173‑D 6.3)
- Article Number: 851/1 BDC PH
- Country of Origin: CZ
- Customs Tariff Number: 82079030
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