Heavy-duty high-speed steel construction with a 135 degree split point for drilling in tougher materials. Available in a black and gold finish, black oxide finish and titanium nitride coating.Black and gold drills are excellent for non-ferrous applications and low tensile steel. Black oxide finish increases wear resistance and adds lubricity to improve chip flow. Titanium nitride (TiN) coating adds lubricity and hardness, enhancing chip flow, finish hole quality and drill life.
Technical Specs
ArticleForet court
Équivalent décimal0,0625 po
Material - MachiningHigh Speed Steel
Angle de pointe du foret135 Degrees
Alimentation en liquide de refroidissementSans alimentation en liquide de refroidissement
Type de goujureHélicoïdale
Longueur de goujure7/8 po
Angle d'hélice28 degrés
Direction spiraleÀ droite
Diamètre de tige1/16 po
Longueur hors tout1-7/8 po
Drill Length ClassJobber Length
Groupe de foretsIndividuel
NormesNAS 907 type B
Drill Diameter Tolerance+0.0000 in/-0.0005 in
Web ThinningThinned
Application - matière principaleFonte, acir inoxydable, acier, acier à outils et à matrices