Description
The SECO 00041127 is a left-hand indexable boring bar designed for precision internal boring and turning operations on CNC lathes and machining centers. Built from steel with an A-MVPN toolholder style, it accepts VNMG 332 diamond-shaped inserts held by a pin and clamp method for rigid, repeatable cutting performance. The bar features a 1-1/4 inch shank diameter, a 14 inch overall length, and a 95-degree lead angle that positions the cutting edge for stable entry into bored features. Coolant-through capability supports chip evacuation and extended insert life in deeper bore applications. Licensed machinists and tool-and-die professionals are the typical installers for this style of bar.
This boring bar is suited for both roughing and finishing passes in internal diameter work on metalworking lathes and turning centers. Its 1.75 inch minimum bore diameter makes it appropriate for medium-to-large bore applications in production and job-shop environments. The negative rake geometry and -5-degree rake angle help control cutting forces when machining harder ferrous and non-ferrous materials. Cutting tool applications include boring and turning, making it a dual-purpose bar for shops looking to reduce tooling changeovers.
Key Features
- Left-hand A-MVPN toolholder style with 95-degree lead angle for stable bore entry
- Accepts VNMG 332 diamond inserts with a 3/8 inch inscribed circle and 3/16 inch thickness
- Pin and clamp insert holding for secure, repeatable insert indexing
- Coolant-through design aids chip removal and thermal management in deep-bore applications
- Negative rake (-5 degrees) geometry for controlled cutting forces on harder materials
- 1-1/4 inch shank diameter with 14 inch overall length suits medium-to-large turning setups
Compatibility
Designed for use with VNMG 332 diamond-shaped inserts with a compatible insert size code of 33. Suitable for CNC lathes and turning centers that accept a 1-1/4 inch boring bar shank. Cutting applications include boring and turning.
Installation Notes
Installation is performed by a qualified machinist following shop safety protocols and machine tool manufacturer guidelines. Power down and lock out the lathe or turning center before mounting or removing the boring bar. Ensure the shank bore in the toolholder is clean and within specification before clamping to maintain concentricity. Follow insert manufacturer indexing procedures when replacing VNMG 332 inserts, and verify coolant-through passages are clear before resuming cuts.
Technical Specifications
- Toolholder Style: A-MVPN
- Hand of Holder: Left Hand
- Lead Angle: 95 degrees
- Rake: Negative
- Rake Angle: -5.00 degrees
- Shank Diameter: 1-1/4 inch (1.25 inches)
- Overall Length: 14 inches
- Minimum Bore Diameter: 1.75 inches
- Center to Cutting Edge: 0.875 inches
- Insert Compatibility: VNMG 332
- Compatible Insert Shape: Diamond
- Compatible Insert Size Code: 33
- Insert Inscribed Circle: 0.375 inches (3/8 inch)
- Insert Thickness: 0.1875 inches (3/16 inch)
- Insert Holding Method: Pin and Clamp
- Coolant Through: Yes
- Tool Material: Steel
- Cutting Tool Application: Boring, Turning
- Weight: 1 pound
- UNSPSC Code: 23241601
Standard Information
- Brand: SECO
- Manufacturer Part Number: 00041127
