We are using cookies to offer a more comfortable experience in our online shop

For example, we can show you personalized product recommendations and offer the best possible service functions in the ordering process. You can manage your cookie settings under privacy policy at any time.

  • Due to a temporary system error, the displayed tracking information within the online ordering system are currently wrong. Please track the displayed tracking number as follows. For shipments within Germany please track with GLS. For shipments to all other European countries, please track with TNT / FedEX. We are sorry for the inconvenience caused.
  • Important notice: Due to COVID-19 our costs for importing products to Europe have increased tremendously. Therefore, an additional freight cost surcharge of 11.50 Euros per delivery will be invoiced from May 1st, 2020 temporally. Find further information here.
  • Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 2:00 24/1/2021 to 0:00 (CET) 25/1/2021. We apologize for the inconvenience.

DuoBore Twin-Edge Boring Tool 391.68B

Part Number

Once your search is narrowed to one product,
the corresponding part number is displayed here.

Part Number
Part NumberStandard Unit PriceVolume DiscountShipping Days?Applicable Tip Shape Minimum Machining Diameter Dimension L1
Tip Size iC D5m
Tip tightening torque

243.75 €

12 Days C (80° Diamond-Shape)258141643324.825-3224

243.75 €

12 Days C (80° Diamond-Shape)309741643324.830-3829

276.30 €

12 Days C (80° Diamond-Shape)375041643324.837-47-

276.30 €

12 Days S (Rectangular)46654170640946-56-

276.30 €

12 Days S (Rectangular)557041706501655-70-

306.28 €

12 Days S (Rectangular)697541641631669-84-

335.40 €

12 Days S (Rectangular)838641641631683-101-

335.40 €

12 Days S (Rectangular)9910041641803899-125-

335.40 €

12 Days S (Rectangular)123100416418038123-150-


  1. 1

Basic information

Application Internal Diameter Lubrication Hole Y/N Available Cutting Angle(°) 75
Tool Lead Angle(°) 15°

Additional Products in this Category

Tech Support

Technical Support
Tel:+49 69 668173-0 / FAX:+49 69 668173-360