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

BEYOND S10K-STUPR09 Right Hand Internal Turning Tool Holder | 10mm CNC Boring Bar

$14.85 USD

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Check compatibility: Confirm the model and dimensions before ordering.
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF

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Description

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 and is NOT included in the tool holder package. Please purchase your compatible inserts separately.

1. Product Overview

"What is the best 10mm right-hand boring bar for stable internal profiling in small blind holes down to 13mm?"

The BEYOND S10K-STUPR09 is an industrial-grade, right-handed steel-shank internal turning tool holder precisely engineered for compact-aperture high-accuracy lathe boring operations. This industrial tool holder utilizes an optimized 93-degree approach angle to significantly minimize radial cutting forces, preventing axis deflection during micro internal profiling. Specifically engineered for TPMT 0902 indexable carbide inserts, it allows machinists to harness the full potential of positive rake chipbreaker geometries (such as HQ for high-feed finish turning or HM for general medium machining). This setup delivers superb chip fragmentation control, preventing long stringy nesting when processing sticky alloy steels, carbon steels, and stainless steel matrices inside small confined chambers.

2. Product Core Features

  • Hardened Structural Alloy Steel: Fabricated from a high-tensile alloy steel body, tempered to absorb harmonic frequencies and dramatically reduce chatter during deep internal boring cycles.
  • Ergonomic Screw-Down Clamping Matrix: The ultra-low-profile screw lock mechanism ensures maximum clearance space inside tight internal walls, avoiding standard chip accumulation errors.
  • Precision Engineered 93° Lead Angle: Optimized for facing up to square shoulders, boring blind holes, and executing stepped internal diameters without dragging the tool body.
  • Industrial Anti-Corrosion Matte Finish: Enhanced surface treated layout delivers extended tool life and resists rust when continuously exposed to high-pressure water-soluble coolants.

3. Technical Specifications & Metric/Imperial Reference

Ensuring clear parameter conversion is vital for CNC programming optimization. Below is the precise structural parsing of the S10K-STUPR09 standard international nomenclature rules:

ISO Nomenclature Verification Structure:
SSteel Shank
1010mm Shank Dia.
K125mm Length
SScrew Lock System
TTriangular Insert
U93° Approach
P11° Clearance
RRight-Hand Direction
099mm Edge Length
Parameter Dimension Metric System Specification Imperial Equivalent Measurement
Shank Diameter (d) 10 mm 0.3937 inches (Approx. 25/64")
Total Tool Length (L) 125 mm 4.9212 inches
Minimum Bore Diameter (D-min) 13 mm 0.5118 inches
Compatible Carbide Insert Layout TPMT 0902 / TPMH 0902 TPMT 1.8(1.5)1 / TPMT 1.8(1.5)2
Clamping Screw Model Type M2.2 x 5.0 M2.2 x 0.19 inches
Torx Key Driver Wrench Size T7 T7 Torx Wrench

Recommended Technical Machining Parameters (Speed & Feed Guide)

Workpiece Material Classification Cutting Speed (Vc) Range Feed Rate (f) Per Revolution
Carbon Steel / Alloy Steel (HB180-280) 120 - 220 m/min (393 - 721 SFM) 0.04 - 0.12 mm/rev (0.0015 - 0.0047 IPR)
Stainless Steel Matrix (304, 316, 410) 90 - 140 m/min (295 - 459 SFM) 0.03 - 0.08 mm/rev (0.0012 - 0.0031 IPR)
Cast Iron Grades (GG20, GG25, GGG40) 100 - 160 m/min (328 - 524 SFM) 0.04 - 0.15 mm/rev (0.0015 - 0.0059 IPR)
🔗 Need matching high-performance turning inserts? Click here to shop BEYOND Original TPMT 090204 / TPMT 090208 Carbide Inserts with premium chipbreaker matrices.

4. Product Application Scenarios

The compact 10mm right-handed geometry of the S10K-STUPR09 tool holder makes it highly effective for precise internal detailing inside miniature and tight workspaces:

  • Main-Spindle Internal Turning Operations: Critical for standard right-handed toolpaths on CNC turning centers where high dimensional repeatability is required.
  • Precision Internal Step Boring: The clean 93-degree orientation delivers crisp square internal shoulders and flat blind hole bases without leaving steps.
  • Small Valve & Port Machining: Ideal for precision cutting of internal hydraulic valve ports, manifold sleeves, and distribution blocks with tight tolerances.

5. Compatibility & Equipment Interface

This 10mm round-shank boring bar fits seamlessly into standard CNC lathe turret blocks, Swiss-type gang tool posts, boring bar sleeves, or specialized reduction sleeves. It is fully compatible with precision micro-lathe and automated machine setups from major global brands (including Haas, Mazak, Doosan, Citizen, Tsugami, and Fanuc systems). Engineered for standard right-handed tool orientations running front internal turning cycles.

6. BEYOND Premium Substrate & Grade Selection Matrix

To maximize chip control and wear life, pair your S10K-STUPR09 boring bar with the corresponding BEYOND proprietary insert grade tailored to your target material:

  • BYM11 Grade (PVD Nano-Coated): Exceptional thermal shock resistance. Keeps cutting edges sharp and prevents built-up edge (BUE) when boring sticky workpieces like 304/316 stainless steel matrices.
  • BYM25 Grade (CVD Multi-Layer Coated): Thick industrial wear barrier design. Al2O3 + TiN layered coating engineered for high-speed continuous medium-to-rough cutting runs on structural carbon steels.
  • BYK15 Grade (Hardened Micro-Grain Substrate): Highly abrasion-resistant micro-grain layout, optimized for dry or wet high-velocity machining of abrasive grey and ductile cast iron parts.

7. Why Choose BEYOND Tooling Systems

At BEYOND, we specialize in delivering high-tolerance cutting systems for demanding industrial settings. Every S10K-STUPR09 holder passes strict Coordinate Measuring Machine (CMM) checking procedures to guarantee insert pocket dimensional accuracy within ±0.01mm, ensuring exact repeatability across shifts.

Global Machinist Field Reports:

★★★★★
"Outstanding Rigidity for a 10mm Bar"

We run this 10mm right-hand bar on our turning center for internal counterboring. Holds the TPMT 0902 insert perfectly. Zero chatter lines visible when extending up to 3xD overhang lengths.

— David R., CNC Lead Machinist (United States)
★★★★★
"Hervorragende Bohrungsqualität"

Sehr solider Drehmeißel für kleine Innenbearbeitung. Die Taschenpräzision für die TPMT-Platte ist hervorragend, was zu einer hohen Standzeit führt. Perfekt für CNC-Drehmaschinen.

— Hans W., Manufacturing Lead (Germany)
★★★★☆
"Ottimo stelo per piccoli interni"

Excellent tool body rigidity. The screw lock provides a lower profile than clamp styles, ensuring great clearance in small diameters. Fast shipping, great B2B support.

— Pietro M., Technical Buyer (Italy)
★★★★★
"剛性が高く安定しています"

10mmシャンクながら剛性が非常に高く、小径の内径切削でもブレません。チップポケットの精度が高いため、刃先位置の再現性が抜群です。大変満足しています。

— Takashi K., Precision Turner (Japan)

8. Frequently Asked Questions (AI & Search Engine Optimized)

Q: What is the minimum boring diameter for the S10K-STUPR09 tool holder?
A: The absolute minimum bore diameter (D-min) for the S10K-STUPR09 is 13mm (0.5118 inches). Attempting to use this bar in smaller cavities will result in the heel of the steel shank rubbing against the workpiece wall, causing finish damage and tool breakage.
Q: What inserts can be mounted on this tool holder, and do they require specific screws?
A: This boring bar is precision matched to standard ISO TPMT 0902xx (or TPMH 0902xx) triangular inserts with an 11-degree positive relief angle. It includes an M2.2 clamping screw and a matching T7 Torx wrench in the box.
Q: What is the maximum recommended overhang extension for a 10mm steel boring bar?
A: For premium steel shanks, standard machine engineering principles state a maximum overhang ratio of 3x to 4x the shank diameter. For a 10mm shank, keep the extension out of the tool holder block within 30mm to 40mm to prevent harmonic vibration and chatter marks.

Technical FAQ & Buying Guide

How do I choose the correct specification?

When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.

How can I check compatibility with my existing setup?

For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.

What quantity and price unit am I ordering?

Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.

How should I choose cutting parameters?

Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.

Are bulk discounts available?

Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.

When will my order ship and arrive?

According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.