Closing Recommendation
Both are capable motor graders, so pick by your job size and your priorities. Choose the Komatsu GD705-5 for big highway and mining grading, where more engine power, a bigger blade, a heavy build and load-sensing hydraulics help you cut and spread large volumes. Choose the Shantui SG15-G for smaller road jobs and tight sites, where tighter turning, faster travel, cleaner CEV Stage IV emissions, standard GPS and lower cost suit you. Also check which brand's parts reach your site fastest. So match the machine to your work: Komatsu GD705-5 for heavy, large-scale grading, Shantui SG15-G for lighter road work, tight sites and value.