I just laugh at the Eskimo & strikemaster "drill" bits. $200-$150 **censored**. I got my 8in nils with a PowerPoint for $135.
Any simple hand auger with a plate adaptor will work just fine. I ran a 6in lazer with an nda-2 adaptor turned down and a plate on it. Total invested......$20 used 6in $5 plate $25 turned down nda2 adaptor...$60 for a solid 6in lazer drill auger setup for in my one man Eskimo hut.