I have two Kolpin ratchet grips mounted on my snowmobile rear bumper. One clamps to my K-Drill shaft with the drill powerhead strapped down to the sled tunnel & running board. The other grip holds a shovel and/or ice combo as necessary on the other side of the sled.
The ratchet grips work fine in that configuration. However I have two Kolpin heavy duty grips mounted on the front bumper of my Honda Pioneer side-by-side to carry the auger combo alone. For sure they are much more sturdy.