Teng 98Pc Md Tx Tpx, Pwr Thru & Vde S Driver Set ( CST45 Best of all 20mm Diameter Rotaloc Annular Best of all Threaded Shank Drill 3 32" x 1" •Type “D” adapter drills are made from cobalt high speed steel and are manufactured to NAS 965 Type “D” specifications with 135° heavy duty split points and surface treated for drilling hard Set Contents: TX Screwdrivers: 8 9 TPX Screwdrivers: 10 15 20 25 30 Power Thru Flat Screwdrivers: 6 0 mm 25mm long GR for Phillips head: PH 2 (3) 25mm long Bits Int Hex Holes: 2 3 4 5 6 8 mm 25mm long Bits Phillips Head: PH 1 (3) 2(3) 3(3) 25mm long Bits PZ Hrad: PZ 1(3) 2(3) 3(4) 25mm long Bits for Square Slot: No 1 2 3 25mm long Bits for TX Heads: TX 10 15 20 x 2 25 x 2 27 30 40 25mm long Bits for TPX Heads: TPX 6 7 8 9 10 15 20 x 3 25 x 3 27 30 40 Bit Ratchet Screwdriver (7 bits): MD907R Mini Slotted Screwdrivers: 2