848/851/867/19 Metal Twist Drill Bits and Bits Set, 19 pieces 1x 888/4/1 K Rapidaptor Universal Bit Holder: 1/4", x 50 mm 6x 848 HSS Metal Twist Drill Bits: 3x38 mm, 4x44 mm, 4.2x45 mm, 5x50 mm, 6x50 mm, 8x51 mm 6x 851/1 TZ bits: 2x PH 1x25 mm, 3x PH 2x25 mm, PH 3x25 mm 6x 867/1 TORX® bits: TX 10x25 mm, TX 15x25 mm, TX 20x25 mm, TX 25x25 mm, TX 30x25 mm