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Heavy-Duty Cobalt High-Speed Steel Drill Bits
Pagtutukoy:
Materyal:HSS CO8 M42 (8% co), HSS CO M35 (5% co)
Pamantayan:DIN 338, DIN 340, DIN 1897, haba ng Jobber
Ibabaw:Maliwanag / Black Oxide / Amber / Black&Gold / Titanium / Kulay ng Rainbow
Point Angle:118 degree, 135 split degree
Uri ng Shank:tuwid na bilog, tri-flat, heksagono
Sukat:0.8-25.5mm, 1/16″-1″, #1-#90, AZ
