A petty (utility) knife probably gets used most often after your all-purpose knives. It can be used to cut small fruits, vegetables, and even some smaller cuts of meats (any many many more things, like cutting through plastic wrapping from a grocery trip!) If you have one, for a quick meal for two, you may just get it done without a chef's knife. 

Brand: Makoto Kurosaki 
Producing Area: Echizen-Fukui/ Japan
Profile: Petty
Size: 135mm
Steel Type: Stainless Steel
Steel: VG7, Stainless Damascus Clad
Handle: Ebony Octagonal
Total Length: 258mm
Edge Length: 130mm
Handle to Tip Length: 143mm
Blade Height: 290mm
Thickness: 1.4mm
Handle Length: 114mm
Weight: 85g
Hand Orientation: Ambidextrous