Long taper shank twist drill bits DIN341 1) DIA: 1/8 to 4-1/4 INCH or 5mm to 120mm 2)HSS9341 M2 M35 M42

HSS drill bit / Taper shank twist drills

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,DIN345,DIN341...

Material:HSS-9341,6542,M35,M42,HSS4341,HSS4241...

Finishing Color:Black oxide,Bright,TIN coated

Process:Roll Foreged,milled,Extruded

Long taper shank twist drill bit DIN341