Products Description
Multi-Model Universal Anti-Vibration Boring Bar・Special Parts for Precision Small Bore Boring
- NBJ / NBH series solid carbide anti-vibration boring bars are universally engineered to perfectly match NBJ10, NBJ12, NBJ16 and NBH2084 fine boring systems. Adopting integrated tungsten carbide structure with dense metallographic texture, these bars deliver outstanding rigidity, structural toughness and natural vibration damping.
- They are specially developed for challenging working conditions including long overhang boring, deep blind holes, thin-walled workpieces and narrow cavities. By reducing cutting resonance, tool deflection and dimensional distortion, the bars greatly optimize bore roundness, straightness and inner wall finish.
- With cryogenic aging treatment and high-precision cylindrical grinding, each boring bar maintains tight dimensional tolerance and stable assembling accuracy. The anti-rust surface treatment ensures good corrosion resistance against cutting fluid and harsh workshop environment.Compatible with standard CNC machines and tapping centers, this full-series boring bar set covers multiple industrial fields, providing stable and reliable solutions for small hole finishing, hole correction and mass production.
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Main Technical Specification

Tool Tip Standard Configuration
Default tip: TB06/TP08-R0.2; TP09/TP11-R0.4
Feature: The extension length can be freely adjusted according to the hole depth to achieve the optimal effective depth.
Note: If the tool shank diameter is smaller than the inner bore of the boring head, use the corresponding reducing sleeve. Compatible with TB/TP insert series.
Unit: MM
| Model No. | Shank Dia D | Overall Length L | Swing Dia C | Offset H | Min. Bore Dia Dmin | Screw/Wrench | Insert |
|---|---|---|---|---|---|---|---|
| CJ Series (Standard) | |||||||
| CJ0405-110 | 4 | 110 | 4.8 | - | 5 | M1.6-T6 | CC--03X1 |
| CJ0506-110 | 5 | 110 | 5.8 | - | 6 | M1.6-T6 | WB--0601 |
| CJ0607-110 | 6 | 110 | 6.8 | - | 7 | M2.0-T6 | WB--0201 |
| CJ0608-110 | 6 | 110 | 6.8 | - | 8 | M2.0-T6 | TB--0601 |
| CJ0708-120 | 7 | 120 | 7.8 | - | 8 | M2.0-T6 | TB--0601 |
| CJ0810-125 | 8 | 125 | 9.8 | - | 10 | M2.0-T6 | TB--0601 |
| CJ1012-125 | 10 | 125 | 11.8 | - | 12 | M2.5-T8 | TP--0902 |
| CJ1012-150 | 10 | 150 | 11.8 | - | 12 | M2.5-T8 | TP--0902 |
| CJ1214-130 | 12 | 130 | 13.8 | - | 14 | M2.5-T8 | TP--0902 |
| CJ1214-180 | 12 | 180 | 13.8 | - | 14 | M2.5-T8 | TP--0902 |
| CJ1416-180 | 14 | 180 | 15.8 | - | 16 | M3.0-T8 | TP--1103 |
| CJ1618-180 | 16 | 180 | 17.8 | 15.6 | 18 | M3.0-T8 | TP--1103 |
| CJ1618-220 | 16 | 220 | 17.8 | 15.6 | 18 | M3.0-T8 | TP--1103 |
| EJ Series (Through Coolant) | |||||||
| EJ0405-110 | 4 | 110 | 4.8 | - | 5 | M1.6-T6 | CC--03X1 |
| EJ0506-110 | 5 | 110 | 5.8 | - | 6 | M1.6-T6 | WB--0601 |
| EJ0607-110 | 6 | 110 | 6.8 | - | 7 | M2.0-T6 | WB--0201 |
| EJ0608-110 | 6 | 110 | 6.8 | - | 8 | M2.0-T6 | TB--0601 |
| EJ0708-120 | 7 | 120 | 7.8 | - | 8 | M2.0-T6 | TB--0601 |
| EJ0810-125 | 8 | 125 | 9.8 | - | 10 | M2.0-T6 | TB--0601 |
| EJ1012-125 | 10 | 125 | 11.8 | - | 12 | M2.5-T8 | TP--0902 |
| EJ1012-150 | 10 | 150 | 11.8 | - | 12 | M2.5-T8 | TP--0902 |
| EJ1214-130 | 12 | 130 | 13.8 | - | 14 | M2.5-T8 | TP--0902 |
| EJ1214-180 | 12 | 180 | 13.8 | - | 14 | M2.5-T8 | TP--0902 |
| EJ1416-180 | 14 | 180 | 15.8 | - | 16 | M3.0-T8 | TP--1103 |
| EJ1618-180 | 16 | 180 | 17.8 | 15.6 | 18 | M3.0-T8 | TP--1103 |
| EJ1618-220 | 16 | 220 | 17.8 | 15.6 | 18 | M3.0-T8 | TP--1103 |
| HJ Series (High Speed Steel) | |||||||
| HJ0405-80 | 4 | 80 | 4.8 | - | 5 | M1.6-T6 | CC--03X1 |
| HJ0506-90 | 5 | 90 | 5.8 | - | 6 | M1.6-T6 | WB--0601 |
| HJ0608-100 | 6 | 100 | 6.8 | - | 8 | M2.0-T6 | WB--0601 |
| HJ0708-100 | 7 | 100 | 7.8 | - | 8 | M2.0-T6 | TB--0601 |
| HJ0810-110 | 8 | 110 | 9.8 | - | 10 | M2.0-T6 | TB--0601 |
| HJ1012-125 | 10 | 125 | 11.8 | - | 12 | M2.5-T8 | TP--0902 |
| HJ1214-140 | 12 | 140 | 13.8 | - | 14 | M2.5-T8 | TP--0902 |
| HJ1416-150 | 14 | 150 | 15.8 | - | 16 | M2.5-T8 | TP--0902 |
| HJ1618-180 | 18 | 180 | 17.8 | 15.6 | 18 | M3.0-T8 | TP--1103 |
Product Feature
Multi-Model Compatible Design・High-Damping Structure & Long Service Life
Full Series Universal Compatibility
Standard connecting size fits NBJ10, NBJ12, NBJ16 and NBH2084 boring units directly. Interchangeable within the same series to simplify tool stocking and reduce inventory cost.
Micro-Grinding High Precision
br>Key contact surfaces are precision ground for minimal runout and high coaxiality. Combined with fine boring heads, it delivers stable dimensional repeatability for mass processing.
High-Damping Carbide Structure
Integrated tungsten carbide provides superior stiffness and natural shock absorption. It efficiently absorbs cutting vibration and ensures steady performance during long overhang and deep hole operations.
Corrosion & Wear Resistance
One-piece seamless structure enhances overall structural strength. Reinforced surface treatment resists coolant corrosion and temperature fluctuation, extending service life in continuous production.
Application Fields
Cross-Industry Precision Boring・Stable Performance for Various Materials
Precision Mold Production
Fine boring for mold guide holes, thimble holes and angle oil holes, minimizing long-hole vibration and improving mold fitting accuracy.
01
Hydraulic & Pneumatic Components
recision finishing of valve inner holes, sealing seats and oil passages, ensuring smooth inner surface and reliable anti-leakage performance.
02
Automotive Precision Components
Hole trimming for automobile bushings, fixing bases and housing parts, fully adapted to automated mass production requirements.
03
Instrument & Hardware Processing
High-tolerance small hole machining for testing equipment and micro connectors, meeting strict precision assembly standards.
04
Automation Non-Standard Parts
Complex boring in narrow spaces and deep cavities for custom jigs, fixtures and mechanical structural parts.
05
FAQ
Boring Common Question Solutions・More Convenient for Selection & Use
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