Review on Powerful Astro Pneumatic Tool RN8M: 100-Piece M8 8mm Steel Rivet Nuts for Ultimate Fastening Efficiency by Jose Baldwin

This is very cool! For size 8mm I drilled a 13/32 hole and hammered in the insert. (Also tried a 7/16 hole - still works, but harder to roll the insert because it wants to wobble.) One 8.8 bolt inserted with a thrust washer - https://www.amazon.com/ dp/B00JQ26HSW/ref= cm_cr_ryp_prd_ttl_sol_6 --under head and folded liner up to 26 ft lbs. It appears that attempting to tighten more than 28 ft-lbs will cause the insert to lose traction and start spinning.