Chisels for hammers over 15 lbs

Chisel S 22 x 82,5 mm

This kind of chisel  is available in different versions:
Pointed chisel

Usable lengths: 17.7 / 29.5 / 39.4 / 59.1 / 78.7
Flat chisel

with a cutting width of 0.98 inches
Usable length: 17.7 inches
Flat spade

with a cutting width of 4.7 inches
Usable length: 15.7 inches

with a cutting width of 2.95 inches
Usable length: 15.7 inches