Chef's Knives
Food Prep & Culinary Standards · 9 specs
Direct Answer
Kitchen culinary knives standardize blade lengths and edge geometry, centered around the 8-inch (20 cm) chef's knife. Edge angles distinguish acute Japanese bevels (15° per side / 30° inclusive) for push-cutting from durable Western/German bevels (20° per side / 40° inclusive) for rocking chops.
Source: DIN ISO 8442 / Cutlery Industry Standards · Last reviewed Aug 28, 2026
Specs
| Governing Standards | DIN ISO 8442 (Materials and Edge Standards for Cutlery) |
| Standard Chef's Knife (Gyuto) | 8.0 inches (20.3 cm) blade | 45–50 mm heel height | Universal benchmark |
| Petite Chef / Utility | 6.0 inches (15.2 cm) blade | 35–40 mm heel height | Agile compact prep |
| Large Chef's Knife | 10.0 inches (25.4 cm) blade | 50–55 mm heel height | High-volume prep & slicing |
| Paring Knife | 3.5 inches (8.9 cm) blade | Off-board peeling, trimming, and coring |
| Boning / Fillet Knife | 6.0 inches (15.2 cm) blade | Flexible or semi-stiff blade profile |
| Bread Knife (Serrated) | 9.0 to 10.0 inches (23–25 cm) | Scalloped teeth for crusty bread |
| Japanese Edge Bevel Angle | 15° per side (30° inclusive) | High razor sharpness on hard steel (60–62 HRC) |
| Western / German Edge Bevel | 20° per side (40° inclusive) | High impact toughness on steel (56–58 HRC) |
Culinary Knife Sizing & Function Matrix
| Knife Type | Blade Length (Inches) | Blade Length (cm) | Standard Edge Angle | Primary Culinary Function |
|---|---|---|---|---|
| Chef's Knife (8") | 8.0" | 20.3 cm | 15°–20° per side | Primary all-purpose workhorse: dicing, mincing, chopping, slicing |
| Chef's Knife (6") | 6.0" | 15.2 cm | 15°–20° per side | Compact prep work, smaller hands, crowded cutting boards |
| Chef's Knife (10") | 10.0" | 25.4 cm | 15°–20° per side | Large volume chopping, breaking down melons, butchery |
| Santoku | 6.5"–7.0" | 16.5–18.0 cm | 15° per side | Japanese flat profile with sheep's foot tip for push-cutting |
| Paring Knife | 3.0"–4.0" | 7.6–10.2 cm | 15°–20° per side | Detail work in-hand: peeling fruit, coring strawberries, deveining |
| Serrated Bread | 9.0"–10.0" | 22.9–25.4 cm | 20° single bevel | Crusty artisan bread, ripe tomatoes, soft cakes without crushing |
| Boning Knife | 5.5"–6.0" | 14.0–15.2 cm | 20° per side | Trimming silver-skin, deboning poultry, separating joints |