HSS twist drill set-19pcs

1.Material:HSS4241, 9341, 4341, M2, M35 2.roll forged,edge ground,fully ground 3.Hss 4.)Metal drilling 5.) ISO9001

19pcs HSS Drill Bit Set

size: 1.0 - 1.5 - 2.0 - 2.5 - 3.0 - 3.5 - 4 - 4.5 - 5.0 - 5.5 6.0 - 6.5 - 7.0 - 7.5 - 8.0 - 8.5 - 9.0-9.5-10.0mm

roll forged with black oxide;

roll forged with polished;

roll forged & polished titanium coated;

economical high speed steel, 118 degree point angle design for genral purpose.

fully ground with white bright;

fully ground with black oxide;

fully ground with titanium coated

fully ground with black & gold;

hardened high speed steel, 135 degree point angle design for the most accurate hole dimensions and high concentricity.

HSS twist drill set-19pcs