This heavy-duty jobber drill bit set is made of high speed steel. It includes a metal drill index, sizes 1/16, ½, ¼, ⅛, 11/32, 13/32, 15/32, 3/16, 3/32, ⅜, 5/16, 5/32, 7/16, 7/32 inch, is designed for use with all materials, and meets ASME standards. This 1972 series jobber drill bit set has a black and gold finish, and has fractional inch measurements. It is non-coolant through. Plus it has two parabolic flutes, a straight shank, and a 135 Degrees split point.
Technical Specs
ArticleEnsemble de forets courts
Finition - usinageNoire, dorée
Nombre de forets15
Angle de pointe du foret135 Degrees
Type de goujureParabolique
Direction de coupeDroitier
Rapport profondeur x dia.8xD
Classe de longueur du foretCourt
Série1972
ComprendIndex de foret en métal
Foret aéronautiqueNon
Tolérance de diamètre du foret+0,0000 po/-0,0005 po à +0,0000 po/-0,0007 po à +0,0000 po/-0,0010 po
Amincissement de l'âmeAmincissement de l'âme
Application - matière principaleTous les matériaux