HSS-G Co 5 twist drill set, 170 parts, 1 - 10 mm. Supplied = assembled. Finish = miscellaneous. Colour = gold. Suitable for (material) = metal/wood/plastic. Conforms to = DIN 338 type N. Number of parts = 170 pcs. Min. drill range = 1 mm. Max. drill range = 10 mm. Tip angle = 130 °. Cutting material = HSS-G Co 5. Product type = twist drills. With integrated clasp. High strength hinge. DIN 338 type N. Relieved cone as drill point, right hand cut. Split point as tip. 130° tip angle, 20 - 30° spiral angle. High heat hardness retention for toughest demands. High performance cobalt alloy steel, golden brown surface. Can be used in unalloyed and alloyed steels with a strength of up to 1100 N/mm², tempering and case hardened steels, stainless and acid resistant steels and hot and cold forged steels.