5441-12 MXL Model Code: AA (Part # 5441-12 MXL) This Product Features: - Replaceable Bit. - 2-piece construction. Drive Type: Square. - Tip Type: Hex. - Measuring System: Metric Locking type: ball. Material: Forged alloy steel. Finish: chrome nickel. Price refers to 1 item. len. = Total length Len. = Length Code & # 160, & # 160, Model Name Aadrive Size: 1/2, Pin Size: 12mm Bit Length: 142,900mm; Total Length: 181mm, Weight : 227g ABDRIVE SIZE: 1/2 SIZE: 14MM BIT LENGTH: 136,500MM LENGTH LENGTH 181MM WEIGHT. : 340.50 g acdrive size: 1/2, tip size: 17 mm bit length: 130,200 mm; total length: 181 mm, weight. : 544.80 g addrive size: 3/8, tip size: 10 mm bit length: 127 mm, total length: 154,800 mm; weight. : 123.30 g aedrive size: 3/8, tip size: 4 mm bit length: 127 mm, total length: 154.800 mm; weight. : 35.50g afdrive size: 3/8, tip size: 5mm bit length: 127mm, total length: 154,800mm; weight. : 38.50g agdrive size: 3/8, tip size: 6mm bit length: 127mm; total length: 154,800mm; weight