Bit-Check 10 Universal 1, 10 pieces 1x 895/4/1 K Universal Bit Holder: 1/4", x 52 mm 3x 851/1 TZ bits: PH 1x25 mm, PH 2x25 mm, PH 3x25 mm 3x 855/1 TZ bits: PZ 1x25 mm, PZ 2x25 mm, PZ 3x25 mm 3x 800/1 TZ bits: 0.8x5.5x25 mm, 1x5.5x25 mm, 1.2x6.5x25 mmRobust Bit-Check by Wera. Bit-Checks provide a quick overview of the tools available. Bits not needed are