The kickback with an auger this powerful can sprain or crack a wrist. with the safest results, use this auger (and all handheld power augers) in soil that doesn’t have significant rocks or tree roots.  At https://mirrorbookmarks.com/story17786643/how-much-you-need-to-expect-you-ll-pay-for-a-good-post-hole-digger-hire