• View Products
  • Menu
Meet PAC Tools at IMTS 2026 | Visit Booth #432061 (West Building)
Excluseive Offer AT IMTS 2026
Shipping Cut-Off Time: 3 PM CST (4 PM EST) – Orders placed after this time will ship the next business day.
Menu
Search
close
Start typing to see products you are looking for.
0 item(s) / $0.00
Show sidebar
Show 15 22 44 All

    BORING BAR SLEEVES NECK DOWN STYLE | TOOL HOLDER BUSHINGS

    Item Number
    Description
    Price
    Drawings

    114024
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114023
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114022
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114021
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114020
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114019
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114018
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114017
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114016
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114015
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114014
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114013
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114012
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114011
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -

    114010
    View Inventory

    BORING BAR SLEEVES NECK DOWN STYLE
    $95.00
    -
    Discover our CNC machine tools and accessories in our
    online store.

    Get Our Exclusive Product Catalog

    Explore our high-quality CNC tools and accessories. Find precision-engineered products tailored to your needs. Download now and elevate your machining operations.

    Accuracy

    PAC Precision Tools Boring Bar Sleeves – Neck Down Style are designed to provide precise and stable support when adapting smaller diameter boring bars to larger tool holder bores. The neck-down design helps maintain accurate tool alignment, secure clamping, and consistent machining performance during precision boring operations.

    Manufactured from high-quality hardened alloy steel and precision-ground for dependable dimensional accuracy, PAC Precision Tools Neck Down Boring Bar Sleeves provide excellent rigidity, wear resistance, and long-lasting performance in demanding CNC machining environments.

    Dimensions

    Boring Bar Sleeves Neck Down Style Dimensions

    Features

    • Neck-down design provides secure support for smaller diameter boring bars
    • Designed to adapt smaller boring bars to larger tool holder bores
    • Precision fit helps maintain accurate boring bar alignment
    • Helps reduce vibration and tool deflection during machining
    • Supports improved concentricity and machining stability
    • Precision-ground internal and external surfaces
    • Made from hardened alloy steel for durability and wear resistance
    • Provides reliable performance during demanding CNC machining operations
    • Available in inch and metric sizes for different machining requirements
    • Wrench flats allow easy installation and removal
    • Type and size are clearly marked for easy identification
    • Excellent dimensional stability under machining loads
    • Corrosion-resistant surface finish for extended service life
    • Easy installation with a secure and stable fit

    PAC Precision Tools Boring Bar Sleeves – Neck Down Style are ideal for boring, internal turning, and precision machining applications. Their neck-down configuration provides dependable tool support while helping reduce vibration, improve machining stability, and maintain consistent surface finish in CNC machining centers and lathes.

    Frequently Asked Questions

    1. What are Boring Bar Sleeves – Neck Down Style?
    Boring Bar Sleeves – Neck Down Style are precision sleeves designed to adapt smaller diameter boring bars to larger tool holder bores. Their neck-down design provides secure tool support, accurate alignment, and improved stability during CNC boring and internal machining operations.
    2. What is the purpose of the neck-down design in a boring bar sleeve?
    The neck-down design allows a smaller diameter boring bar to be securely mounted in a larger tool holder bore while maintaining proper alignment. This helps provide stable tool positioning and supports accurate machining performance.
    3. How do Neck Down Boring Bar Sleeves improve machining stability?
    Precision Neck Down Boring Bar Sleeves provide a secure interface between the boring bar and tool holder. Proper support helps reduce unwanted movement, vibration, and tool deflection, which can contribute to more consistent machining results and surface finish.
    4. How do I select the correct Neck Down Boring Bar Sleeve size?
    Select a sleeve based on both the tool holder bore diameter and the boring bar diameter. The sleeve should provide a proper fit for the boring bar and holder to maintain secure clamping, accurate alignment, and low runout. PAC Precision Tools can help confirm the appropriate size for your application.
    5. What materials are used to manufacture Neck Down Boring Bar Sleeves?
    Neck Down Boring Bar Sleeves are manufactured from durable materials such as hardened alloy steel to provide strength, wear resistance, dimensional stability, and reliable performance in demanding CNC machining environments.
    6. Are Neck Down Boring Bar Sleeves available in different sizes?
    Yes. Neck Down Boring Bar Sleeves can be available in different bore and outside diameter configurations to accommodate various boring bars and tool holders. Inch and metric options may be available depending on the specific product configuration.
    7. Need help selecting Boring Bar Sleeves – Neck Down Style?
    If you need help selecting the right Boring Bar Sleeves – Neck Down Style for your CNC machining application, you can contact us at +1 262-282-2456 or email us at sales@pactoolsusa.com. PAC Precision Tools USA provides precision tooling solutions for CNC boring, turning, and machining applications.
    TOP RATED PRODUCTS

    BORING BAR SLEEVES (170)

    BORING BAR SLEEVES NECK DOWN STYLE (24)

    TYPE-C BUSHINGS (228)

    TYPE-CS BUSHINGS (227)

    TYPE-Z BUSHINGS (248)

    Stay Updated with Us!

    Subscribe to our newsletter to receive the latest news, exclusive content, and special offers directly in your inbox.

    Will be used in accordance with our Privacy Policy
    Scroll To Top