Finish: Polished Brass Finish
Box Strike Assembly: Painted to match forend
Case Finish: Silver powder coat
Case Size: 80mm x 108mm (3in)
BackSet: 53mm This is the measurement from the edge of the door to the centre of the keyhole.
Centres: 57mm This is the measurement from the centre of the follower, which operates the handles, to the centre of the keyhole. In the UK this is commonly 57mm.