Combination drive sets of 50 PC. The set includes: 1/4" drive 6pt Socket: 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm. 1/2" drive 12pt Socket: 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 19 mm, 21 mm, 23 mm, 24 mm, 27 mm, 30 mm. Magnetic Screwdriver. 1/4" drive Reversible Ratchet Offset. Universal Joint 1/4". Sliding Tee Handle 1/4" Dr. Extension 1/4" x 3". Extension 1/2" x 5". Extension 1/2" x 10". Universal Joint 1/2". Sliding Tee Handle 1/2"Dr x 9". 1/2" Rev Round Head Ratchet. 1/2" drive Sparkplug Socket 13/16". 16 Bits.