Rough Rider Work Knife Yellow Carbon Folding Knife Mirror Carbon Steel BladeS Yellow Smooth Synthetic Handle KD04R /. This folding knife from Rough Rider features jigged bone handles with a 440 stainless drop point blade. Specifications for Rough Rider Work Folder Knife: Manufacturer: Rough Rider Knife Application: Folding Blade Quantity: 1 Package Contents: Rough Rider Work Folding Knife Rough Rider KD04R / RR1743: Work Knife Yellow Carbon Folding Knife Mirror Carbon Steel Blade(S) Yellow Smooth Synthetic Handle Inlay Shield