Cross section allows use on convex and concave surfaces. Tapered very slightly towards point both in width and thickness.

Smooth Cut: Approx 62 teeth per 25mm (Fine).
Second Cut: Approx 36 teeth per 25mm (Medium).
Bastard Cut: Approx 26 teeth per 25mm (Coarse).

Size. 150mm (6in)
Cut half round bastard
Flat Side: Double Cut
Half-Round: Double Cut.
Tanged