Altman helmet with Imperial Surplus headband

[TwistedZen]

So I purchased the helmet headband kit from kwdesigns/Imperial Surplus to put in my Altman.  I previously had a non-adjustable hardhat band that was ok but I definitely wanted something easily adjustable.  The problem is, the headband doesn't fit perfectly in the Altman helmet.  I though it would line up with the bolt holes, but nope!  It was suggested that I drill a hole just next to the bolt hole and put another on in the headband itself to attach it that way.

Anyone else have the same setup and have any dos or don'ts before I start drilling away?

[CatfoodRob]

The headband rivets into the helmet , it doesn't use the visor bolts . 

Install the liner .

remove the visor . Drill holes beside the visor holes thru into the liner ears .

replace visor . 

[TwistedZen]

I ended up putting 3M Dual Lock "velcro" in the top and on the headband.  It is all one type and interlocks instead of hook and loop.  Shout out to @spyder918 for the help.

https://imgur.com/a/dQvjnHn <-full album and further description

[Kegluneq]

Thanks for doing this. I am at the point of doing this and drilling holes in my helmet freaks me out. I will definitely try this first!