The Bit-Check 30 Bi Torsion 1 Allround Long Life Bit Set from Wera is all contained within an easy to carry compact holder. Each bit has an elastic torsion zone and a softer Bi Torsion zone which prevents the bit from twisting when under high strain and lengthens the life of the bit.The supplied Rapidaptor chuck enables the fitting and removing of bits easily with one hand and can be used in a power screwdriver or power drill. The Bit Check is ideal for storing the bits due to its low weight and compactness, while Wera s Take It Easy Tool Finder System, ensures that every part is organised and easy to find. Contents: Rapidaptor Universal Bit HolderScrew Bits: BiTorsion Phillips 25mm: 2 x PH 1, 5 x PH 2, 2 x PH 3 BiTorsion Pozidrive 25mm: 2 x PZ 1, 6 x PZ 2, 2 x PZ 3 BiTorsion Torx: 1 x TX 10, 2 x TX 15, 2 x TX 20, 2 x TX 25, 2 x TX 30, 1 x TX 40