Wiertło spiralne Dormer R45811.2

the carbide provides excellent wear resistance and improves tool life. the continuously thinned web (ctw) provides excellent transverse strength that improves chip removal and enables high performance. the four-facet split point provides perfect centering and low cutting forces, resulting in very accurate holes with a superior surface finish. the tialn coating increases surface hardness, wear resistance and improves tool life. the controlled sharpening and external corner design provide a high and consistent tool life

• Stal automatowa, stal miękka (<120 HB <400 N/mm²)
• Stal konstrukcyjna, stal nawęglana (<200 HB <700 N/mm²)
• Stal węglowa (<250 HB <850 N/mm²)
• Stal stopowa (<250 HB <850 N/mm²)
• Stal stopowa, zahartowana i odpuszczona (>250<350 HB >850<1200 N/mm²)
• Żeliwo szare (lamelarne) (<150 HB >500 N/mm²)
• Żeliwo szare (lamelarne) (>150<300 HB >500<1000 N/mm²)
• Żeliwo sferoidalne / żeliwo ciągliwe (<200 HB <700 N/mm²)
• Żeliwo sferoidalne / żeliwo ciągliwe (>200<300 HB >700<1000 N/mm²)
• Miedź (<100 HB <350 N/mm²)
• Mosiądz beta, brąz (<200 HB <700 N/mm²)
• Mosiądz alfa (<200 HB <700 N/mm²)
• Bardzo twardy brąz (<470 HB <1500 N/mm²)
• Stop aluminium z krzemem 0.5% (<150 HB <500 N/mm²)
• Stop aluminium z krzemem >0.5% <10% (<120 HB <400 N/mm²)
• Stop aluminium z krzemem >10%, wzmacniane włóknami (whisker), stopy aluminium i magnezu (<120 HB <400 N/mm²)
• Duroplasty
• Wzmocnione tworzywa sztuczne