| 摘要 |
<p>A pick tool 100 for pavement degradation or mining, comprising an insert 200 and a holder 300, the insert comprising a super-hard strike tip 210 joined to a proximate end of an insertion shaft 220. The insertion shaft is secured by an interference fit within a bore 330 provided in the holder, the insertion shaft having a longitudinal axis and a distal end of the insertion shaft positioned at an insertion depth within the bore. A wear limit marker 350 is provided on an external surface of the holder and positioned to correspond to an axial distance along the insertion shaft from the distal end, the distance being at least 20 per cent and at most 35 per cent of the insertion depth.</p> |
