A chef's knife ('Gyuto' in Japanese) is the most versatile blade that can handle almost anything in the kitchen. Their shape and often generous edge length mean that whether it's cutting small tomatoes or portioning a large roast, you can do it with one blade. Most cooks have multiple chef's knives and it is not hard to justify getting one more when it has so much utility.

Brand: Kogetsu 
Smith: Goko Hamono
Producing Area: Chiba/ Japan
Profile: Gyuto
Size: 165mm
Steel Type: Carbon Steel
Steel: Mono Yasuki White (Shirogami) #1
Handle: Wine Pakka Western
Total Length: 287mm
Edge Length: 168mm
Handle to Tip Length: 176mm
Blade Height: 42mm
Thickness: 1.7mm
Handle Length: 112mm
Weight: 161g
Hand Orientation: Right-Handed