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S20R-MDUNR11 Internal Boring Bar Tool Holder for CNC Lathes boring bar for sale Compatible with DNMG Inserts
$22.36 USD
Product Name:S20R-MDUNR11 Internal lathe boring bar holder Overview: The S20R-MDUNR11 Internal Boring Bar is a precision tool holder designed for internal turning operations on CNC machine tools and lathes. Made...
S20R-MDUNL11 Internal engine Boring Bar Tool Holder for CNC Lathes boring bar set Compatible with DNMG Inserts
$20.33 USD
Product Name:S20R-MDUNL11 Internal lathe boring bar holder Overview: The S20R-MDUNL11 Internal Boring Bar is a precision tool holder designed for internal turning operations on CNC machine tools and lathes. Made...
S32T-MDUNR15 Internal Boring Bar Holder for CNC Lathes - Alloy Steel, Multi-Lock System, 32mm Diameter DNMG Insert
$55.34 USD
Product Name:S32T-MDUNR15 Internal lathe boring bar holder Overview:The S32T-MDUNR15 Internal Boring Bar Tool Holder is an essential tool for precise internal turning and boring operations on CNC lathes and machine...
S32T-MDUNL15 Internal Boring Bar Holder for CNC Lathes - Alloy Steel, Multi-Lock System, boring bar speeds and feeds DNMG Insert
$55.34 USD
Product Name:S32T-MDUNL15 Internal lathe boring bar holder Overview:The S32T-MDUNL15 Internal Boring Bar Tool Holder is an essential tool for precise internal turning and boring operations on CNC lathes and machine...
S25S-MDUNR15 Internal Boring Bar Tool Holder for CNC Lathes - Alloy Steel, 25mm Diameter Handle Compatible with DNMG Inserts
$31.42 USD
Product Name:S25S-MDUNR15 Internal lathe boring bar holder Overview:The S25S-MDUNR15 Internal Boring Bar is an advanced tool holder designed for precision internal turning operations on CNC machine tools and lathes. Crafted from...
S25S-MDUNL15（no include inserts）
$31.42 USD
BEYOND S25S-MDUNL15 Internal Turning Tools Holder S25S MDUNL15 MDUNR 15 Boring Bar CNC Lathe Cutter Machine MDUNR Carbide Inserts DNMG1504 DNMG150404 Package Include: 1pcs turning tool holder (not include insert)...
S25R-MDUNR11 Internal Boring Bar Tool Holder for CNC Lathe Compatible with CNMG Inserts, 25mm Diameter
$32.89 USD
Product Name:S25R-MDUNR11 Internal lathe boring bar holder Overview:The S25R-MDUNR11 is an internal boring bar designed for precision machining applications on CNC lathes. Crafted from durable alloy steel with a multi-lock system,...
BEYOND MDUNR/L Internal Boring Bar Series – Complete Specification List
Brand: BEYOND
Series: MDUNR/L INTERNAL (steel-shank, lever-lock, DNMG inserts)
Key Search Tags
steel shank boring bar, MDUNR boring bar, MDUNL boring bar, DNMG 11 insert, DNMG 15 insert, internal boring tool, 95 degree approach angle, 0 degree relief angle, left hand boring bar, right hand boring bar, CNC lathe boring, heavy-duty boring bar, large diameter boring bar, BEYOND boring tools
Why Choose BEYOND MDUNR/L?
- Large-size range: 20 mm – 50 mm shank diameter
- Rigid steel shank (S) for deep-hole and heavy-duty cuts
- 95° approach angle (D) + 0° relief (N) = maximum edge strength
- Lever-lock clamp (U) for quick insert changes
- Left-hand (L) & right-hand (R) versions in stock
- Designed for DNMG 11 & DNMG 15 inserts (also accepts DNMA, DNMP)
Technical Data – All Models
| Part Number | Shank Ø mm | Length Code | Insert Size | Min. Bore Ø mm | Hand | Overall Length mm |
|---|---|---|---|---|---|---|
| S20R-MDUNL11 | 20 | R (200) | DNMG 1104 | 25 | L | 200 |
| S20R-MDUNR11 | 20 | R (200) | DNMG 1104 | 25 | R | 200 |
| S25R-MDUNR11 | 25 | R (200) | DNMG 1104 | 32 | R | 200 |
| S25S-MDUNL15 | 25 | S (250) | DNMG 1506 | 32 | L | 250 |
| S25S-MDUNR15 | 25 | S (250) | DNMG 1506 | 32 | R | 250 |
| S32T-MDUNL15 | 32 | T (300) | DNMG 1506 | 40 | L | 300 |
| S32T-MDUNR15 | 32 | T (300) | DNMG 1506 | 40 | R | 300 |
| S40T-MDUNL15 | 40 | T (300) | DNMG 1506 | 50 | L | 300 |
| S40T-MDUNR15 | 40 | T (300) | DNMG 1506 | 50 | R | 300 |
| S50U-MDUNR15 | 50 | U (350) | DNMG 1506 | 63 | R | 350 |
| S50V-MDUNR15 | 50 | V (400) | DNMG 1506 | 63 | R | 400 |
Insert & Spare Parts
- Insert: DNMG 1104 (for 11 models) / DNMG 1506 (for 15 models)
- Clamp lever: standard DN-style lever included
- Wrench: T15 Torx key supplied free with every bar
Application Ideas
- Heavy-duty boring of forged steel flanges
- Deep bores in wind-tower hubs
- Large gearbox housings – cast iron & steel
- Oil-field connector bores – 4140, 4340, F22
Shipping & Stock
Ships from California, USA & Dortmund, Germany. 98 % of models in stock – order before 3 pm local time for same-day dispatch.
Long-Tail Keywords
20 mm steel boring bar, DNMG 11 boring bar, DNMG 15 boring bar, MDUNR right hand boring bar, MDUNL left hand boring bar, 95 degree approach angle, 0 degree relief angle, heavy duty internal boring tool, large diameter boring bar, CNC lathe deep boring, BEYOND precision boring tools, steel shank boring bar supplier