The Auto Hammer has two input slots that holds a stack of material each and an internal inventory of 20 slots for output. It consumes 40 RF/t over 6.65 seconds to perform a single operation, consuming 5333 RF to hammer one block. If supplied with excess RF it will buffer up to 32000 RF.
The Auto Hammer can be enhanced by adding additional Diamond Hammers into the empty slots. Each hammer will improve speed by 50% (additive), so with two Diamond Hammers it will be twice as fast.