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The Master Kuo GL 270 is most simply described as a thin, 10.5″ chef knife with a double high blade. The 3″ height of the blade is perfect for cutting long, deep slices in large fish like Tuna and Mahi, for clearing the height of your BBQ pork belly or brisket. A custom made leather sheath is included. A custom made leather sheath is optional.

Traditionally, the GL series knives have been used in conjunction with the Master Kuo G series Taiwan Tuna Knives to make long lateral cuts, and/or cross cuts across the spine. It is kin to a Japanese maguro bocho.

This blade is stainless steel cladding with a Japanese Carbon steel core, and a stainless steel handle. Hardness is RC 60-61, and comes with a custom made leather sheath. The GL series is available in 7 lengths – 240mm (9.5″), 270mm (10.5″), 300mm (12″), 340mm (13″), 360mm (14″), 390mm (15.5″), and 500mm (20″).


  • Blade: 270 mm x 80 mm x 3 mm / 10.5″ x 3.1″ x 0.125″
  • Handle Length: 110 mm / 4.25″
  • Overall Length: 390 mm / 15.5″
  • Weight: 480 g. / 16.1 oz. (1.05 lb.)

Knife care: Keep clean with warm water and soap. Towel dry immediately. Do not put into dishwasher. Stainless clad outer steel will not rust, but exposed SK5 core edge steel can show signs of surface rust over time. Most surface rust can be removed by sharpening the edge.

Weight 1.5 lbs
Dimensions 18 × 6 × 6 in

Master Kuo


Master Kuo GL Series


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Shipping to USA

Most Domestic USA orders ship within 72 hours of ordering from our Colorado location via USPS. You can track your order from this Link

Shipping International/ outside of USA

Most International orders ship within 72 hours of ordering from our Taiwan location via Chunghwa Post. You can track your order from your countrys postal website or from this Link

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