Bosch RH540S 1-9/16 Spline Combination Hammer NEW. The item “Bosch RH540S 1-9/16 Spline Combination Hammer NEW” is in sale since Tuesday, July 9, 2019. This item is in the category “Business & Industrial\Light Equipment & Tools\Drills & Hammers\Hammer Drills”. The seller is “discounteditemz” and is located in Norcross, Georgia. This item can be shipped to United States.