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VBGT insert
VBGT insert

VBGT insert

VBGT 35 degree insert angle: 5° Positive Rake Insert with single-sided Chipbreaker;

Screw-On Insert, finishing geometry with high positive rake face for chip control in long chipping materials.

Breaker Application: Finshing machining

Matching TurningTool Holder: SVQCR/L, SVUCR/L, SVQBR/L, SVUBR/L

Range of VBGT insert types:VBGT1103/VBGT1604

VBGT Insert can deal with multiple operations by combining different chip breakers and grades.

Material : Tungsten Carbide;

Product Introduction

The VBGT insert is specially designed for aluminum alloy lathe machining, with a dedicated chipbreaker, which not only eliminates the problem of chip entanglement that occurs during aluminium alloy finishing, but also provides an excellent surface finish.

Key Features of VBGT Inserts

  • 80° Rhombic Shape: Provides four cutting edges and strength for general purpose turning.
  • Positive Rake Angle: This can offer a slightly smoother cut and lower cutting forces compared to negative rake inserts.
  • Chipbreaker Options: VBGT inserts feature various chipbreaker designs for influencing chip flow during specific operations.
  • Coatings: Often coated with TiN, TiCN, AlTiN, etc., for improved wear resistance.

VBGT insert Specification

Here’s a breakdown of VBGT insert specifications, including the code meaning and important features:

VBGT Designation

  • V: 80° rhombic shape. This offers stability and strength for varied turning operations.
  • B: 5° relief angle (clearance angle).
  • G: Chipbreaker type and hole design (varies between manufacturers).
  • T: Indicates a tolerance class for precision of inscribed circle and thickness.

Common VBGT Dimensions

VBGT inserts, like many others, have numbers that determine their size:

  • VBGT 110X0X:

    • Inscribed Circle (IC): 0.125″ (1/8″)
    • Thickness: 0.094″ (3/32″)
    • X represents the nose radius (e.g., 1 = 1/64″, 0 = sharper corner)
  • VBGT 160X0X:

    • Inscribed Circle (IC): 0.625″ (5/8″)
    • Thickness: 0.125″ (1/8″)
    • X represents the nose radius

VBGT insert holder

turning tool holder SVQCRL
turning tool holder SVUCRL


turning tool holder SVQBRL


turning tool holder SVUBRL

Carbide VBGT Insert Dimensions (ISO and ANSI)

ISO DesignationInscribed Circle (IC)ThicknessCorner Radius
VBGT 11030211mm (approx. 0.43")3.18mm (1/8")0.2mm (approx. 0.008")
VBGT 11030411mm (approx. 0.43")3.18mm (1/8")0.4mm (approx. 0.016")
VBGT 16040416mm (approx. 0.63")4.76mm (3/16")0.4mm (approx. 0.016")
VBGT 16040816mm (approx. 0.63")4.76mm (3/16")0.8mm (approx. 0.031")

Example: VBGT 110302 (ISO)

  • 80° rhombic shape, positive rake insert.
  • Inscribed circle of 6.35mm (approx. 1/4″).
  • Thickness of 3.18mm (approx. 1/8″).
  • Specific chipbreaker/hole design.

The Science Behind Carbide Inserts: How They're Made and Why They're So Strong

Carbide inserts are some of the most versatile and durable cutting tools available. But how are they made? And what makes them so strong? In this video, we’ll explore the science behind carbide inserts, from the properties of tungsten carbide to the manufacturing process.

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