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Pambansang Parallel Shank Twist Drill Bits, Mahabang Serye
Pagtutukoy:
Materyal:High Speed Steel M35, M2, 4341
Pamantayan:DIN 340
Ibabaw:Maliwanag / Black Oxide / Amber / Black&Gold / Titanium / Kulay ng Rainbow
Point Angle:118 degree, 135 split degree
Sukat:1-20mm
