BB Small Bore Cutter Mini Turning Grooving Tool NC CNC Lath MVR MFR MFL Solid Carbide

0.4μm Micro-Grain Solid Carbide, One-Piece Construction

Vibration-resistant and durable solid carbide, prevents tool breakage

TisiN Nano-Coating

High Heat Resistance/High Wear Resistance
Multi-layer coating, improved wear resistance, and longer service life

Precise R Radius Smooth Machining

Rounded R-angle at 200x magnification
Precision-ground radius for high-accuracy arc edge, preventing chipping and ensuring smoother machining

Multiple Specifications Available

MFR：Deep Face Grooving
MVR：Face Grooving

Boring Bar for Internal Grooving

MFR
High Efficiency, Reliability, and Speed
Specialized for Small-Diameter Grooving
Sharp, Efficient, and Wear-Resistant Boring Bar for Small Hole Grooving

Boring Bar Face Grooving

MVR
Specialized Boring Tool for High Hardness and High Precision
Applicable Materials: Stainless steel, mold steel, alloy steel, cast iron, etc., with a hardness below 45 HRC.

Turning Test Under the Same Conditions

Our MVR MFR Boring Tool：
No Significant Wear on Cutting Edge
High Hardness, Minimal Wear
Company A’s Product：
Obvious Wear on Cutting Edge
oor Wear Resistance, Significant Wear

Angled Design

Unique angled cutting edge design reduces cutting resistance, ensures smooth machining, and minimizes tool changes

Machining Method Description

MPR, Standard Boring Tool
MQR, Copy Boring
MIR, Copy Boring
MIR, Trapezoidal Thread
MIR, Thread Turning Tool
MGR, Internal Grooving
MKR, Internal Radius Groove
MUR, Flat Bottom Boring
MFR, Face Grooving
MFL, Face Grooving
MVR, Deep Face Groove
MXR, Back Boring

Model Interpretation MFR6B2.0L22

Model/Represents
M= Micro Boring Tool

R: R= Right-hand Thread /L= Left-hand Thread

F:T= Turning / P= Profiling & Boring
Q= Profiling & Boring
I= Threading
D= Thread Relief, Grooving, Chamfering
C= Chamfering & Boring
G= Grooving
K= Radius Grooving
F= Axial Grooving
Z= Axial Radius Grooving
X= Reverse Turning / Internal Turning
U= Profiling
W= Chamfering & Profiling
V= Deep Axial Grooving
M= Multi-functional Micro Boring Tool
N= Turning

6 Shank Diameter：
3=3.0mm
4=4.0mm
5=5.0mm
6=6.0mm
8=8.0mm
10=10.0mm

B2.0 Boring：
R0.2= Nose Radius R0.2mm
Threading(Variable Pitch) A60 A55 TR
(Fixed Pitch) ISO UN NPT ACME
Grooving (Groove Width)：
B1.0=1.0mm
B1.5=1.5mm
B2.0=2.0mm

L22 Length ：
L5=5mm
L10=10mm
L15=15mm
L22=22mm
L35=35mm