Umebachi Ryoma Kanna Convex Compass Plane 24mm Curved Sole Flat Bottom Wood Tool for Concave Hardwood Shaping for Bowls and Spoon Woodworking


Craft precision curves effortlessly with this traditional Japanese plane. Its compact body and 24mm blade deliver controlled shaping on curved surfaces, ideal for fine woodworking and cabinetmaking.


New item

JPY 4,229
1 piece

In stock



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This Umebachi Ryoma Craft Plane 24mm is designed for precision shaping along curved wood surfaces. With a compact wooden body and traditional Japanese pull-style blade, it offers excellent control and balance for detailed woodworking. Whether you are refining concave edges or working on tight contours, its hand-forged blade enables smooth, responsive cuts. The flat bottom is ideal for carving out smoothly curved concave surfaces with a consistent arc across their span.

Ideal for creating concave grooves, smoothing inside curves, or shaping rounded joints in furniture making, this plane is especially suited for tasks where Western-style planes are too large or push strokes are less effective. Its lightweight design makes it an excellent companion for detailed finishing, joinery fitting, and hobbyist carpentry.

Product Data:
• Blade Width: 24mm
• Handle Material: Hardwood
• Blade Material: Forged steel
• Set Contents: Main unit only

To use, hold the body firmly with both hands, positioning the thumbs on top of the body for control. Pull the plane toward you along the curved surface, adjusting angle and pressure as needed for consistent shaving depth. Periodically remove chips to avoid jamming.

Wipe the blade after use and apply a light coat of oil to prevent rust. Store in a dry location with the blade facing upward or cushioned to prevent damage. Keep out of reach of children. This tool contains sharpened edges and should be handled with care.

Technical characteristic Value
Item ID 44928
Condition New
Manufacturer Umebachi Ryoma
Manufacturing country Japan
Net weight 120 g
Weight 220 g
Dimensions 38×35×120mm
Customs tariff number 8205.30

JAN Code: 4977292110273

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