钻头规格和长度.doc

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
350mm/420mm
φ180mm
350mm/420mm
φ57mm
350mm/420mm
φ200mm
350mm/420mm
φ63mm
350mm/420mm
φ220mm
350mm/420mm
φ76mm
350mm/420mm
φ250mm
350mm/420mm
φ83mm
350mm/420mm
φ275mm
350mm/420mm
φ89mm
350mm/420mm
φ300mm
350mm/420mm