Discover the difference between combo drills and SDS rotary hammers! We explore user effort vs. tool mechanism, highlighting how SDS rotary hammers significantly reduce fatigue by letting the tool do the work. Learn about impact force delivery and why SDS is superior for demanding tasks! #SDSRotaryHammer #ComboDrill #PowerToolComparison #DIYProjects #ToolMechanism #ConstructionTools #UserFatigue #PowerToolReview #ToolTips #HomeImprovement