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75 is a precision tool for evaluating external thread diameters against metric fine standards
it uses an intermediate-precision HSS-E (M35 cobalt) composition with a left-hand spiral flute and right-hand cutting to deliver accurate
Optimized for materials below 55 HRc
dimensionally stable holes and straightforward compatibility with common toolholders
and speed up workflows by delivering accurate bore sizes with minimal finishing effort
Somta Long Series Drill - HSS-E Parabolic Flute - 8.9mm Hydraulic Expansion Chucks 75 is a precision toolThe Somta Long Series Drill in 8. 9 mm is purpose built for deep hole drilling where deeper reach and consistent hole quality matter most. Crafted from HSS E (high speed steel with enhanced wear resistance), this drill balances toughness and heat management to handle demanding metalworking tasks without dulling or losing precision. What makes this drill stand out is the parabolic flute geometry. The curved flute design channels chips away from the
