In addition to being good pieces of kit, the Dutch modular system is dirt cheap. The price doesn't reflect quality: this is a proper army issue, built to last. Here's the tri-fold e-tool pouch, which will take in at least the BW E-tool. The others one should try first. Note: The Gerber (or Fiskars) E-tool will not fit so that the lid is closed.

Drain grommet in the bottom. The pouch has a "Spanish Fly" closure.

Molle compatible

Attaches to anything with PALS on it, such as MOLLE gear, and even standard belts.

Genuine Dutch army surplus

In used but good serviceable condition. The camouflage might be a bit faded and such, but these kinds of things don't affect its use at all.