It consists essentially of a drop hammer weighing 8 kg and having a drop height of 575 mm, a through-rod, a straightedge and a conical tip of 20 mm in diameter attached to the end of the through-rod, which has a taper angle of 60 degrees. 

1. Base plate 300mm * 60mm * 8mm

2. Drop weight: 8kg

3. Tapered head: 20mm diameter, 60°angle