# Wera 12 Piece Bit-Check Diamond Screwdriver Bit and Holder Set

**Brand**: Wera
**Product Code**: 21011154
**Model**: 057421
**MPN**: 5057421001
**Barcode**: 4013288180025
**Price**: £44.95
**RRP**: £68.93
**Availability**: Normally despatched within 9 working days

**Category**: Power Tool Accessories > Screwdriver Bits & Holders > Screwdriver Bits

## Description

The Wera 12 Piece Bit-Check Diamond Screwdriver Bit and Holder Set is a professional-grade bit set featuring diamond-coated tips for superior grip and extended durability. This compact set combines innovative BiTorsion technology with diamond particle coating to deliver exceptional performance in demanding trade applications. The diamond coating consists of tiny particles embedded on each bit tip, literally biting into the screw head to prevent cam-out and reduce the contact pressure required for a secure fit. BiTorsion bits feature an elastic torsion zone that diverts kinetic energy from peak loads, whilst the softer zone prevents the bit tip from twisting under high strain, significantly extending service life. The included Rapidaptor universal bit holder enables rapid bit changes with just one hand - bits attach without actuating the sleeve and are removed by simply pushing the sleeve forward. The multi-component Bit-Check case is both lightweight and compact, with soft material in the lower section ensuring bits are securely held yet simple to remove. The "Take it easy" Tool Finder system uses colour coding and clear imprints to make profile and size identification instant, whilst the case can be positioned upright for convenient bench-top access. Ideal for electricians, joiners and general contractors requiring reliable screwdriving performance across Phillips, Pozidriv and TORX applications. The set suits both power screwdrivers and drill chucks, making it versatile for site work and workshop use. Features and Benefits: &bull; Diamond coating for secure fit in screw heads and prevention of cam-out &bull; BiTorsion technology for extended service life under high torque loads &bull; Rapidaptor holder enables one-handed bit changes without sleeve actuation &bull; Upright positionable Bit-Check case for space-efficient storage &bull; Take it easy tool finder with colour coding for quick bit identification Contents: 1x Bit-Check 12 Diamond 1, 12 pieces 1x 889/4/1 K Rapidaptor Universal Bit Holder: 1/4"x50 3x 851/1 BDC bits: PH 1x25, 2x PH 2x25 3x 855/1 BDC bits: PZ 1x25, 2x PZ 2x25 5x 867/1 BDC TORX® bits: TX 10x25, TX 15x25, TX 20x25, TX 25x25, TX 30x25

## Specifications

- **Brand**: Wera
- **Model No**: 057421
- **Set**: Yes

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**URL**: https://www.tooled-up.com/wera-12-piece-bit-check-diamond-screwdriver-bit-and-holder-set/prod/268011/
