Testors Hobby Knife

It boasts a small but significant detail. When you need to change blades — a fairly frequent exercise when cutting cardboard, matts, plastic parts, etc. — most exacto knives require you to use your finger tips to unscrew an often-stuck collar at the top hugging the exposed razor itself. A slip can be severe. This one moves the unscrewing collar to the other end of the stick — way way safer. And it has a nice grippy feel, cap, and roll stopper. Thank you, considerate knife.

-- KK [Suggested by Jef Raskin]  

Testors Hobby Knife
#50627C
$7

Available from Amazon