Rosemary & Co Series 770 — Synthetic Blend Dagger/Sword
Material
Synthetic Blend (Blend)
Shape
Dagger/Sword
Handle
Both
Best for
Watercolour, Ink, Gouache
$23.35
Sale price $23.35Regular price
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Tuft Length45.0 mmbristle length
Belly Diameter9.5 mmwidest bristle point
Total Lengthtip to handle end
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A Kolinsky sable dagger/sword brush for flowing lines, calligraphy, and tapered strokes.
Rosemary’s Series 770 is a Kolinsky sable dagger/sword brush in long-handle format, which makes it a specialist shaping tool rather than a general round. Dagger/sword brushes are prized because their angled profile can create both thin lines and broader, tapering strokes from a single brush, which is ideal for expressive marks, foliage, hair, and calligraphic work. In Kolinsky sable, the shape gains smoother paint delivery and better point retention than a synthetic dagger typically offers. Compared with a standard flat, it gives more variation in stroke width; compared with a round, it gives much greater directional character. This is the kind of brush chosen when the painter wants the stroke itself to have personality. [inferred]
What makes this brush special
The brush should feel directional and lively. Its angled edge allows the tip to land in a fine line, then widen as pressure or angle changes. That means the brush responds to hand movement more dramatically than a round or flat. The sable hair should provide a supple spring and a clean release, making it good for strokes that need an elegant taper. [inferred]
Medium compatibility
Watercolour
Smooth flow for washes, controlled lines and fine points.
Ink
Good for fluid inks; clean promptly after use.
Gouache
Handles opaque water-based paint when thinned to a brush-friendly consistency.
Great for
Foliage, grasses, hair, and other tapered natural forms.
Calligraphic effects and expressive line variation.
Controlled broad-to-fine strokes in watercolour or illustration.
Technique & use
Lining
Detail Work
Less ideal for
Tiny isolated dots or rigid precision detail.
Heavy texture paint or drybrushing.
Click a row to select sizeTap a row · Swipe for price & stock →
Units/
Size
Handle
Tuft Length
Belly Diameter
Price
Stock
1/4
Short
39.5 mm
8.0 mm
$20.91
Sold Out
3/8
Short
45.0 mm
9.5 mm
$23.35
In Stock
1/2
Short
48.0 mm
12.5 mm
$24.81
In Stock
1/4
Long
39.5 mm
8.0 mm
$21.24
Sold Out
3/8
Long
45.0 mm
9.5 mm
$23.68
In Stock
1/2
Long
48.0 mm
12.5 mm
$25.29
Sold Out
Brush sizes are not standardised across brands — a Size 1 from one maker may differ from another. These brushes are handcrafted, so individual dimensions may vary by 1–2 mm.
How we measure a brushA visual guide to the measurements shown in the size chart above.
These are the same measurements shown in the size chart above. Brush sizes are not standardised across brands, so use these dimensions when comparing brushes within a series or between manufacturers.
Tuft Length
The visible length of the brush hairs, measured from the ferrule to the tip.
Belly Diameter
The widest point of the brush head. On round brushes, this is the widest part of the belly.
Total Length
The full measurement from the tip of the brush to the end of the handle.
How to care for your brush
Clean with lukewarm water and mild soap, taking care not to distort the angled tip during washing. Reshape along the sword edge after cleaning and dry it with the head protected. Do not leave it soaking or resting on the point, because the angled profile can deform permanently. As with all sable brushes, the key is gentle cleaning and careful storage. [inferred]