Threading tapsDrillsEnd millsReamersCountershinksCountershinksConterbore drillsCountershink drillsContershink setsSaw bladesDrill bits and hole sawsProductsCountershinksContershink sets Contershink sets Features Applications Ref Ø3-14/6-20/16-30mm.51380Ø4-12/12-20/20-30mm.51390Ø4-12/4-20/6-30mm.51400Ø4-20/6-30mm.51410Ø6 a 19mm.(6pcs)51420Ø6,3 a 20,5mm.(6pcs)51430Ø2-5 a 15-20mm.(4pcs)51510M3 a 10mm.(6pcs)51550