Sort by:
BEYOND S25S-MTUNR16 (1" Shank) Indexable Internal Boring Bar | 25mm CNC Lathe Turning Tool Holder
$30.78 USD
BEYOND S25S-MTUNR16 Right-Hand Indexable Internal Boring Bar (1" Shank) for High-Rigidity 93° CNC Lathe Rough Boring and Deep Hole Machining ⚠️ INDUSTRIAL PACKAGING NOTICE: The indexable carbide insert shown mounted...
BEYOND S25S-MTUNL16 (1" Shank) Indexable Internal Boring Bar | 25mm CNC Lathe Turning Tool Holder
$30.78 USD
BEYOND S25S-MTUNL16 Left-Hand Indexable Internal Boring Bar (1" Shank) for High-Rigidity 93° CNC Lathe Rough Boring and Deep Hole Machining ⚠️ INDUSTRIAL PACKAGING NOTICE: The indexable carbide insert shown mounted...
BEYOND S20R-MTUNR16 (3/4" Shank) Indexable Internal Boring Bar | 20mm CNC Lathe Turning Tool Holder
$21.95 USD
BEYOND S20R-MTUNR16 Right-Hand Indexable Internal Boring Bar (3/4" Shank) for High-Rigidity 93° CNC Lathe Rough Boring and Deep Hole Machining ⚠️ INDUSTRIAL PACKAGING NOTICE: The indexable carbide insert shown mounted...
BEYOND S20R-MTUNL16 (3/4" Shank) Indexable Internal Boring Bar | 20mm CNC Lathe Turning Tool Holder
$21.95 USD
BEYOND S20R-MTUNL16 Left-Hand Indexable Internal Boring Bar (3/4" Shank) for High-Rigidity 93° CNC Lathe Rough Boring and Deep Hole Machining ⚠️ INDUSTRIAL PACKAGING NOTICE: The indexable carbide insert shown mounted...
BEYOND S18Q-MTUNR16 (11/16" Shank) Indexable Internal Boring Bar | 18mm CNC Lathe Turning Tool Holder
$22.79 USD
BEYOND S18Q-MTUNR16 Right-Hand Indexable Internal Boring Bar (11/16" Shank) for High-Rigidity 93° CNC Lathe Rough Boring and Deep Hole Machining ⚠️ INDUSTRIAL PACKAGING NOTICE: The indexable carbide insert shown mounted...
BEYOND S16Q-MTUNR16 (5/8" Shank) Indexable Internal Boring Bar | 16mm CNC Lathe Turning Tool Holder
$17.44 USD
BEYOND S16Q-MTUNR16 Right-Hand Indexable Internal Boring Bar (5/8" Shank) for High-Rigidity 93° CNC Lathe Rough Boring and Deep Hole Machining ⚠️ INDUSTRIAL PACKAGING NOTICE: The indexable carbide insert shown mounted...
BEYOND S16Q-MTUNL16 (0.625" / 16mm Shank) Indexable Internal Boring Bar | Left-Hand CNC Lathe Turning Tool Holder
$15.85 USD
BEYOND S16Q-MTUNL16 Left-Hand Indexable Internal Boring Bar (16mm Shank) for High-Rigidity 93° CNC Lathe Heavy Roughing and Internal Turning Operations ⚠️ INDUSTRIAL PACKAGING NOTICE: The indexable carbide insert shown mounted...
BEYOND MTUNR/L CNC Boring Bar – Steel Shank, M Clamp, 93° Cutting Angle, TNMG Inserts
The BEYOND MTUNR/L external turning boring bar series provides precise and stable CNC machining. Built with a rigid steel shank, M-type clamp with lock pin, and a 93° cutting edge angle (U), this series is compatible with TNMG16 inserts for medium to finishing operations on steel, stainless steel, alloy steel, and cast iron.
Key Features
- Steel shank (ISO “S” type) for maximum rigidity
- M-type clamping system (Clamp + Lock Pin)
- Compatible with TNMG16xx triangular inserts
- 93° cutting edge angle (ISO code U)
- 0° negative relief angle (N)
- Right-hand (R) and left-hand (L) versions available
- ISO-standard coding ensures global interchangeability
ISO Code Explanation
| Symbol | Meaning |
|---|---|
| S | Steel shank |
| 16 / 18 / 20 / 25 / 32 / 40 / 50 | Bar diameter (mm) |
| Q / R / S / T / V | Bar length: Q=180mm, R=200mm, S=250mm, T=300mm, V=400mm |
| M | Clamp + Lock Pin clamping system |
| T | Insert shape: triangle |
| U | Cutting edge angle: 93° |
| N | Relief angle: 0° negative |
| R / L | Right-hand / Left-hand tool |
| 16 | Insert cutting-edge length for TNMG16 series |
Available Models & Specifications
| Model | Shank Diameter (mm) | Overall Length (mm) | Insert Type | Clamping | Hand |
|---|---|---|---|---|---|
| S16Q-MTUNR16 | 16 | 180 | TNMG16xx | M Clamp + Lock Pin | Right |
| S16Q-MTUNL16 | 16 | 180 | TNMG16xx | M Clamp + Lock Pin | Left |
| S18Q-MTUNR16 | 18 | 180 | TNMG16xx | M Clamp + Lock Pin | Right |
| S18Q-MTUNL16 | 18 | 180 | TNMG16xx | M Clamp + Lock Pin | Left |
| S20R-MTUNR16 | 20 | 200 | TNMG16xx | M Clamp + Lock Pin | Right |
| S20R-MTUNL16 | 20 | 200 | TNMG16xx | M Clamp + Lock Pin | Left |
| S25S-MTUNR16 | 25 | 250 | TNMG16xx | M Clamp + Lock Pin | Right |
| S25S-MTUNL16 | 25 | 250 | TNMG16xx | M Clamp + Lock Pin | Left |
| S32T-MTUNR16 | 32 | 300 | TNMG16xx | M Clamp + Lock Pin | Right |
| S32T-MTUNL16 | 32 | 300 | TNMG16xx | M Clamp + Lock Pin | Left |
| S40T-MTUNR16 | 40 | 300 | TNMG16xx | M Clamp + Lock Pin | Right |
| S40T-MTUNL16 | 40 | 300 | TNMG16xx | M Clamp + Lock Pin | Left |
| S50V-MTUNR16 | 50 | 400 | TNMG16xx | M Clamp + Lock Pin | Right |
| S50V-MTUNL16 | 50 | 400 | TNMG16xx | M Clamp + Lock Pin | Left |
Applications
- External turning
- Profiling
- Finishing operations
- General CNC lathe machining
Recommended Keywords
MTUNR boring bar, MTUNL boring bar, TNMG insert toolholder, 93-degree turning bar, CNC external turning bar, clamp and lock pin toolholder, steel shank boring bar, BEYOND MTUNR, TNMG16 insert holder, ISO turning toolholder, CNC lathe toolholder