TWCS12

Available in two sizes - 17mm (for use with M10 nuts and bolts) and 19mm (for use with M12 nuts and bolts). -Machined flats allow easy access into the most commonly used size of channel (41mm x 41mm) - Bits simply click into adaptor with no need for collar pull back for a convenient and secure bit fit Impact racted for use in an impact driver - perfect for the convenience of single handed driving., Weight: 0.0881849048 Pounds, Manufacturer: Armeg Ltd