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Drill Bit HSS Cobalt TiAIN Coated Red Band 3.7mm

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Diameter : 3.7mm
Flute Length: 39mm
Overall Length: 70mm
130º UX point with two helical parabolic flutes with 33 degrees of helix angle.
TiAlN coating increases tool surface hardness to 87Rc.
For machining materials with Hardness < 470 HB : Tensile Strength <1500 N/mm2.

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