carbide boring bar
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S08K-SDJCR07 CNC Internal boring bar holder lathe – Precision 93° Cutting Angle with Durable Alloy Steel

$13.50 USD

Price shown is a starting point. Contact us for a precise quote based on your requirements.

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Description

Why choose us?

  • Reliable Performance: Proven design for consistent accuracy and durability in CNC machining.
  • Versatile Compatibility: Works with multiple DCMT carbide inserts, accommodating various machining needs.
  • Convenient Setup: Comes with screws and a wrench, streamlining the setup process for users

Elevate Your Machining Precision with the S08K-SDJCR07 CNC Internal Boring Bar Tool Holder

  • Perfect for CNC Machine Tools and Lathes

  • Durable Alloy Steel Material for Long-Term Use

  • Compact 8mm Handle Diameter for Enhanced Control

 

  • Supports Multiple DCMT Carbide Inserts for Flexibility

  • Includes M2.5*6 Screws and T8 Wrench for Easy Setup

  • 7mm Blade Length for Precision Cutting

Overview

The S08K-SDJCR07 Mechanical Lathe CNC Internal Boring Bar Tool Holder is designed for precision internal turning in CNC machining environments. It features a 93° cutting edge angle and a 7° relief angle, ensuring high accuracy and smooth operation. Constructed from durable alloy steel, this tool holder is built for longevity and reliability. The compact 8mm handle diameter and 125mm total length offer excellent control and maneuverability, while the S-type screw design allows for secure mounting. Compatible with various carbide inserts, including DCMT070202 and DCMT2(1.5)1, this tool holder is a versatile and essential addition to any CNC lathe or machine tool setup.

Key Features

  • Cutting Edge Angle: 93°
  • Relief Angle: 
  • Material: Alloy Steel
  • Handle Diameter: 8mm
  • Total Length: 125mm
  • Blade Length: 7mm
  • Compatible Inserts: DCMT070202, DCM070204, DCMT070208, DCMT2(1.5)0, DCMT2(1.5)1, DCMT2(1.5)2
  • Includes: M2.5*6 Screws, T8 Wrench

5-Point Description

  1. Precision Cutting: Achieve high accuracy in internal turning with a 93° cutting edge angle and 7° relief angle.
  2. Durable Material: Constructed from alloy steel for long-lasting performance and resistance to wear.
  3. Versatile Inserts: Compatible with various carbide inserts, including DCMT070202 and DCMT2(1.5)1, for flexibility in machining.
  4. Compact and Manageable: The 8mm handle diameter and 125mm total length provide excellent control and maneuverability.
  5. Easy Installation: Comes with M2.5*6 screws and a T8 wrench, simplifying the setup process.

Applications

  • CNC Machine Tools: Ideal for use in CNC lathes for precise internal boring and turning tasks.
  • Precision Machining: Perfect for achieving accurate internal cuts and smooth finishes in various materials.
  • Tooling Solution: A valuable addition to any workshop needing reliable and precise boring bar tool holders.

Advantages

  • Enhanced Accuracy: The precise cutting angles ensure optimal performance in internal turning operations.
  • Long-Term Durability: High-quality alloy steel construction offers strength and longevity.
  • Flexible Use: Supports a range of carbide inserts for versatile machining options.
  • User-Friendly: Includes necessary components for easy and efficient installation.
S08K-SDJCR07
boring bar for sale

Technical FAQ & Buying Guide

Are your carbide inserts interchangeable with major brands like Sandvik, Iscar, or Kennametal?

Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.

How do I choose the correct insert grade and chipbreaker for machining Stainless Steel (M) vs. Carbon Steel (P)?

We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:

  • For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
  • For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
What are the recommended cutting speed (Vc) and feed rate (f) parameters to maximize tool life?

The optimal cutting parameters vary depending on the workpiece hardness and operation type:

  • For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
  • For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Do you offer bulk discounts or wholesale pricing for machine shops and distributors?

Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.

What is your international shipping policy and typical lead time for orders?

We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.

How do you guarantee the quality and tolerance precision of your CNC tools?

All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.