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Mga Malalaking Twist Drill Bit na Katumpakan ng Malakas na Twist
Pagtutukoy:
Materyal:High Speed Steel M35, M2, 4341, 4241
Pamantayan:DIN 338, Jobber length, 1/2 reduced shank
Ibabaw:Maliwanag / Black Oxide / Amber / Black&Gold / Titanium / Kulay ng Rainbow
Point Angle:118 degree, 135 split degree
Sukat:13.5-30 mm, 33/64″-1″
