Hss Drill Bit long life-span and high quality Taper Shank Twist Drill the size 5mm-100mm Materials M2 M35 M42 M2AL

They are made of high-speed tool steel, strictly according to the national standards,including general, long, lengthened and extra-long taper shank twist drills,the products quality and their long life-span have been keeping ahead in the tool-making industry which make them the strongest products of the company.

Executive standard:GB/T1438.1-1996, GB/T17984-2000,DIN338,DIN340...

Material:Hss-9341,6542,4341,4241...

Finishing Color:Black

Price:for negotiation

Taper Shank drill