钻头规格及长度
钻头外
径
钻头长度
钻头外
径
钻头长度
φ20mm 350mm φ102mm 350mm/420mm
φ22mm 350mm φ108mm 350mm/420mm
φ24mm 350mm φ110mm 350mm/420mm
φ26mm 350mm/420mm φ114mm 350mm/420mm
φ28mm 350mm/420mm φ120mm 350mm/420mm
φ30mm 350mm/420mm φ127mm 350mm/420mm
φ32mm 350mm/420mm φ132mm 350mm/420mm
φ38mm 350mm/420mm φ150mm 350mm/420mm
φ40mm 350mm/420mm φ159mm 350mm/420mm
φ44mm 350mm/420mm φ166mm 350mm/420mm
φ50mm 35