ROTO HAMMER, LG (SPLINE)

These rotary hammers accept spline bits, which drill large-diameter holes and perform heavy-duty chiseling. They are commonly used for pipe running, rebar dowelling, concrete repair, channel grooving, and light demolition applications. Spline-drive hammers are an older-technology alternative to SDS-Max for users with a large stock of spline bits. Their L-shape orients the motor and transmission vertically to increase impact energy, makes the hammer more compact than other styles, and centers the weight of the tool for optimal balance. They have an enclosed grip that protects against rough surfaces and protruding objects. The grip positions the hand behind the bit to keep the tool steady and control the amount of pressure applied to the bit.