7 pcs drain cleaner combination cutter head set, cutter head for dredging, ywnyt 16mm manganese steel drain cleaner machine combination cutter head set for pipeline dredging machine ywnyt <strong>specification:</strong><br> color: black<br> material: manganese steel<br> collet diameter :16 mm<br> fit for: dredging machine<br> weight: approx.220g/7.8oz<br> <br> <strong>package list:</strong><br> 6 x cutter head<br> 1 x key