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BEYOND S08K-STUPL08 Left Hand Internal Turning Tool Holder | 8mm CNC Boring Bar
$14.85 USD
BEYOND S08K-STUPL08 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S14N-STWPR11 Internal Turning Tool Holder for TPMR 1103 Inserts
$16.31 USD
⚠️ PLEASE NOTE: TOOL HOLDER ONLY (INSERTS EXCLUDED) The indexable carbide insert displayed in the boring bar images is for demonstration purposes only and is NOT included in your purchase....
BEYOND S20R-STWPR11 Internal Turning Tool Holder for TPMR 1103 Inserts
$24.19 USD
⚠️ PLEASE NOTE: CARBIDE INSERTS NOT INCLUDED The indexable carbide insert shown within the boring bar pocket is for visual demonstration purposes only. It is NOT included in the purchase...
BEYOND S16Q-STWPR11 High-Rigidity 16mm Shank 180mm Length Screw Clamped Right Hand CNC Lathe Internal Hole Boring Bar for TPMT 1103 Inserts
$16.84 USD
⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images displaying a mounted insert are provided strictly to illustrate geometric pocket...
BEYOND S12M-STWPR11 Internal Turning Tool Holder for TPMR 1103 Inserts
$16.14 USD
⚠️ PLEASE NOTE: TOOL HOLDER ONLY (INSERTS EXCLUDED) The indexable carbide insert displayed in the boring bar images is for demonstration purposes only and is NOT included in your purchase....
BEYOND S10K-STWPR11 Internal Turning Tool Holder for TPMR 1103 Inserts
$14.85 USD
⚠️ PLEASE NOTE: TOOL HOLDER ONLY (INSERTS EXCLUDED) The indexable carbide insert displayed in the boring bar images is for demonstration purposes only and is NOT included in your purchase....
BEYOND S10K-STWPR09 Internal Turning Tool Holder for TPMR 0902 Inserts
$14.85 USD
⚠️ PLEASE NOTE: TOOL HOLDER ONLY (INSERTS EXCLUDED) The indexable carbide insert displayed in the boring bar images is for demonstration purposes only and is NOT included in your purchase....
BEYOND S08K-STWPR09 High-Rigidity 8mm Shank 125mm Length Screw Clamped Right Hand CNC Lathe Micro Internal Hole Boring Bar for TPMT 0902 Inserts
$13.50 USD
⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images displaying a mounted insert are provided strictly to illustrate geometric pocket...
BEYOND S25S-STUPR11 Internal Turning Tool Holder for TPMR 1103 Inserts
$33.16 USD
⚠️ PLEASE NOTE: TOOL HOLDER ONLY (INSERTS EXCLUDED) The indexable carbide insert displayed in the boring bar images is for demonstration purposes only and is NOT included in your purchase....
BEYOND S20R-STUPL11 Left Hand Internal Boring Bar for TPMR 1103 Inserts
$21.90 USD
⚠️ PLEASE NOTE: TOOL HOLDER ONLY (INSERTS EXCLUDED) The indexable carbide insert displayed in the boring bar images is for demonstration purposes only and is NOT included in your purchase....
BEYOND S18Q-STUPR11 Internal Turning Tool Holder | 18mm CNC Boring Bar
$20.47 USD
BEYOND S18Q-STUPR11 Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The carbide insert shown in the product images is for structural demonstration purposes only and is...
BEYOND S16Q-STUPR11 Internal Turning Tool Holder | 16mm CNC Boring Bar
$18.52 USD
BEYOND S16Q-STUPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S16Q-STUPL11 Left Hand Internal Turning Tool Holder | 16mm CNC Boring Bar
$18.52 USD
BEYOND S16Q-STUPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for functional demonstration purposes only...
BEYOND S14N-STUPR11 Internal Turning Tool Holder | 14mm CNC Boring Bar
$16.31 USD
BEYOND S14N-STUPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S12M-STUPR11 Right Hand Internal Turning Tool Holder | 12mm CNC Boring Bar
$16.14 USD
BEYOND S12M-STUPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S12M-STUPR09 Right Hand Internal Turning Tool Holder | 12mm CNC Boring Bar
$16.14 USD
BEYOND S12M-STUPR09 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S12M-STUPL11 Left Hand Internal Turning Tool Holder | 12mm CNC Boring Bar
$16.14 USD
BEYOND S12M-STUPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S12M-STUPL09 Left Hand Internal Turning Tool Holder | 12mm CNC Boring Bar
$16.14 USD
BEYOND S12M-STUPL09 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S10K-STUPR11 Right Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STUPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S10K-STUPL11 Left Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STUPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S10K-STUPL09 Left Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STUPL09 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S08K-STUPR09 Right Hand Internal Turning Tool Holder | 8mm CNC Boring Bar
$14.85 USD
BEYOND S08K-STUPR09 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S08K-STUPR08 High-Stiffness 8mm Shank 125mm Length Screw-Down CNC Lathe Micro Internal Hole Boring Bar Tool Holder for TPMT 0802 Indexable Triangle Inserts
$13.50 USD
⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images displaying a mounted insert are provided strictly to illustrate geometric pocket...
BEYOND S08K-STUPL09 Left Hand Internal Turning Tool Holder | 8mm CNC Boring Bar
$14.85 USD
BEYOND S08K-STUPL09 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S20R-STUPR11 Right Hand Internal Boring Bar for TPMR 1103 Inserts
$21.90 USD
⚠️ PLEASE NOTE: TOOL HOLDER ONLY (INSERTS EXCLUDED) The indexable carbide insert displayed in the boring bar images is for demonstration purposes only and is NOT included in your purchase....
BEYOND S10K-STUPR09 Right Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STUPR09 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S20R-STFPR11 Right Hand Internal Turning Tool Holder | 20mm CNC Boring Bar
$21.90 USD
BEYOND S20R-STFPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S20R-STFPL11 Left Hand Internal Turning Tool Holder | 20mm CNC Boring Bar
$21.90 USD
BEYOND S20R-STFPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S16Q-STFPR11 Right Hand Internal Turning Tool Holder | 16mm CNC Boring Bar
$18.52 USD
BEYOND S16Q-STFPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S16Q-STFPL11 Left Hand Internal Turning Tool Holder | 16mm CNC Boring Bar
$18.52 USD
BEYOND S16Q-STFPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S14N-STFPR11 Right Hand Internal Turning Tool Holder | 14mm CNC Boring Bar
$16.31 USD
BEYOND S14N-STFPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S14N-STFPL11 Left Hand Internal Turning Tool Holder | 14mm CNC Boring Bar
$16.31 USD
BEYOND S14N-STFPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S12M-STFPR11 Right-Hand Boring Bar Internal Turning Tool Holder 12mm
$16.14 USD
BEYOND S12M-STFPR11 Right Hand Indexable Internal CNC Lathe Boring Bar ⚠️ PROCUREMENT NOTICE: This listing is strictly for the Steel Boring Bar Body Only. The indexable carbide insert displayed in...
BEYOND S12M-STFPL11 Left Hand Internal Turning Tool Holder | 12mm CNC Boring Bar
$16.14 USD
BEYOND S12M-STFPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S10K-STFPR11 Right Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STFPR11 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S10K-STFPR09 Right Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STFPR09 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S10K-STFPL11 Left Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STFPL11 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S10K-STFPL09 Left Hand Internal Turning Tool Holder | 10mm CNC Boring Bar
$14.85 USD
BEYOND S10K-STFPL09 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S08K-STFPR09 Internal Boring Bar 8mm Shank 125mm Length Screw Clamped Right Hand 91-Degree TPMT 0902 Lathe Turning Tool Holder
$14.85 USD
⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images showing a mounted insert are provided strictly to illustrate geometric clearance,...
BEYOND S08K-STFPR08 Right Hand Internal Turning Tool Holder | 8mm CNC Boring Bar
$14.85 USD
BEYOND S08K-STFPR08 Right-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S08K-STFPL09 Left Hand Internal Turning Tool Holder | 8mm CNC Boring Bar
$14.85 USD
BEYOND S08K-STFPL09 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND S08K-STFPL08 Left Hand Internal Turning Tool Holder | 8mm CNC Boring Bar
$14.85 USD
BEYOND S08K-STFPL08 Left-Hand Internal Turning Tool Holder – High-Rigidity CNC Boring Bar ⚠️ PLEASE NOTE: The indexable carbide insert shown in the product images is for structural demonstration purposes only...
BEYOND TPMT Boring Bars – Internal Turning Toolholder Series
The BEYOND TP INSERT boring bar series is designed for precision internal turning operations using TPMT positive triangular carbide inserts. This series includes STFPR/L, STUPR/L, and STWPR/L toolholders, offering excellent rigidity, stable insert clamping, and reliable cutting performance. Manufactured according to ISO standards, these boring bars are ideal for CNC lathes and turning centers.
Included Toolholder Types
- STFPR / STFPL – Compact screw-clamp boring bars for finishing operations.
- STUPR / STUPL – Universal internal turning bars for profiling and facing.
- STWPR / STWPL – Reinforced boring bars for higher rigidity and stable cutting.
Key Features & Advantages
- Compatible with standard TPMT positive inserts.
- Triangular insert design offers three cutting edges.
- Positive rake geometry reduces cutting forces.
- High-strength alloy steel shank minimizes vibration.
- Excellent surface finish in internal turning.
- Right-hand and left-hand versions available.
Typical Applications
- Internal turning and boring
- Internal profiling and facing
- Medium to small diameter machining
- Finishing and semi-finishing operations
TPMT Insert Compatibility
- TPMT090204 / TPMT090208
- TPMT110204 / TPMT110208
- TPMT16T304 / TPMT16T308
Technical Specifications
STFPR / STFPL – Screw Clamp Type
| Model | Shank Dia (D) | Overall Length (L) | Insert | Min Bore | Center Height (H) |
|---|---|---|---|---|---|
| S12M-STFPR09 | 12 mm | 150 mm | TPMT0902 | 14 mm | 12 mm |
| S16Q-STFPR11 | 16 mm | 180 mm | TPMT1102 | 18 mm | 16 mm |
| S20R-STFPR11 | 20 mm | 200 mm | TPMT1102 | 22 mm | 20 mm |
STUPR / STUPL – Universal Internal Turning Type
| Model | D | L | Insert | Min Bore | H |
|---|---|---|---|---|---|
| S12M-STUPR09 | 12 mm | 160 mm | TPMT0902 | 14 mm | 12 mm |
| S16Q-STUPR11 | 16 mm | 190 mm | TPMT1102 | 18 mm | 16 mm |
| S20R-STUPR11 | 20 mm | 210 mm | TPMT1102 | 22 mm | 20 mm |
STWPR / STWPL – Reinforced Boring Bar Type
| Model | D | L | Insert | Min Bore | H |
|---|---|---|---|---|---|
| S16Q-STWPR11 | 16 mm | 200 mm | TPMT1102 | 18 mm | 16 mm |
| S20R-STWPR11 | 20 mm | 220 mm | TPMT1102 | 22 mm | 20 mm |
| S25S-STWPR16 | 25 mm | 250 mm | TPMT16T3 | 28 mm | 25 mm |
SEO Keywords & Long-Tail Search Terms
- TPMT boring bar
- Internal turning toolholder for TPMT inserts
- STFPR STFPL TPMT boring bar
- STUPR STUPL CNC internal turning tool
- STWPR STWPL TPMT boring bar holder
- TPMT internal turning tool for CNC lathe
- Positive rake triangular insert boring bar
Why Choose BEYOND?
BEYOND focuses on professional CNC cutting tool solutions. All boring bars are produced under strict quality control, following ISO standards, ensuring consistent performance, long tool life, and reliable machining accuracy for global users.
Supply & Technical Support
BEYOND offers worldwide shipping, OEM/ODM services, bulk supply, and technical consulting for internal turning and boring applications.