Planes on the right side. Top edges are chamfered. At the front, there is a 1.6 cm diameter hole, followed by a recessed thumb grip measuring 3x3 cm. Wooden wedge. At the back, there is a handle 3x3 cm, 10 cm long, beveled downwards, hole 8x2.5 cm. Chip hole on the right. Thread 1 cm, gap 1 cm, wood at side stop 1 cm, tongue width 0.8 cm, height 0.9 cm.