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Criterion S-2 Adjustable Boring Head, 1" Straight Shank, 1/2" Boring Bar
$200
Pay Monthly!Michigan
Used Tool Holders for Sale
Shop used CNC tool holders for sale on Aucto — CAT40, CAT50, CAT45 and HSK holders, collet chucks, facemill arbors and modular extensions from verified sellers across the US and Canada. Inventory is name-brand holders (Sandvik, Kaiser, Carboloy and similar), not no-name ER collets in a poly bag.
Match taper first (CAT40 vs CAT50 vs HSK63/HSK100), then projection, through-coolant, balance rating, and whether the holder is a collet chuck, end-mill holder, facemill arbor or modular (Varilock-style) extension. A CAT50 facemill arbor is a different buy from an HSK100 collet chuck; both appear here.
Match the taper to the spindle on your mill first — adapters are not a plan for production work.
98 listings are in stock and ready to ship. Buy now or make an offer.
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All Listings
View Criterion S-2 Adjustable Boring Head, 1" Straight Shank, 1/2" Boring Bar View Valenite V50CT-10SG-35 CAT 50 Collet Holder, 1" Capacity, 7.5" Length, TG100 Series 
Buy NowValenite V50CT-10SG-35 CAT 50 Collet Holder, 1" Capacity, 7.5" Length, TG100 Series
$30Pay Monthly!MichiganView Valenite BB-1 Boring Bar, 1" Shank, 10" Length, Adjustable Variset System 
Buy NowValenite BB-1 Boring Bar, 1" Shank, 10" Length, Adjustable Variset System
$150Pay Monthly!MichiganView C/O Swiss Made 59184 CAT 45 ER40 Collet Holder, Hrc 54-60, T.i.r. <0.0002", 20K RPM 
Buy NowC/O Swiss Made 59184 CAT 45 ER40 Collet Holder, Hrc 54-60, T.i.r. <0.0002", 20K RPM
$40Pay Monthly!MichiganView Tsd SS15GA-S416-095 Boring Head, 1.5" Shank, 7.25" Length, Precision Metalworking Tool 
Buy NowTsd SS15GA-S416-095 Boring Head, 1.5" Shank, 7.25" Length, Precision Metalworking Tool
$75Pay Monthly!MichiganView Komet A06B-50150 Tool Holder, HSK 100A, Abs 50, 3.2" Length, Steel, Coolant-Through, 7.00 lbs 
Buy NowKomet A06B-50150 Tool Holder, HSK 100A, Abs 50, 3.2" Length, Steel, Coolant-Through, 7.00 lbs
$120Pay Monthly!MichiganView Nikken HSK100A-MDSK16-140-IDU HSK 100 Collet Chuck, 3-16 mm, 140 mm, Coolant-Through 
Buy NowNikken HSK100A-MDSK16-140-IDU HSK 100 Collet Chuck, 3-16 mm, 140 mm, Coolant-Through
$300Pay Monthly!MichiganView Criterion DBL-204 Boring Head, 1-1/4" Diameter Shank, 2-1/2" Length, Adjustable Offset 
Buy NowCriterion DBL-204 Boring Head, 1-1/4" Diameter Shank, 2-1/2" Length, Adjustable Offset
$400Pay Monthly!MichiganView Carboloy CV50-SM2 CAT 50 Facemill Holder, Precision Tool Holder for Heavy-Duty Milling 
Buy NowCarboloy CV50-SM2 CAT 50 Facemill Holder, Precision Tool Holder for Heavy-Duty Milling
$50Pay Monthly!MichiganView 2023 Carboloy CV50-CC3.12-1000 CAT 50 Taper Collet Holder - Perfect for TG100 Series! 
Buy Now2023 Carboloy CV50-CC3.12-1000 CAT 50 Taper Collet Holder - Perfect for TG100 Series!
$30Pay Monthly!MichiganView C/O Swiss Made 46866 CAT 45 Modular Holder, Machining Tool Component, Modular Compatibility 
Buy NowC/O Swiss Made 46866 CAT 45 Modular Holder, Machining Tool Component, Modular Compatibility
$40Pay Monthly!MichiganView C/O Swiss Made 44586 CAT 50 Tool Holder & 18011 Boring Head, 1/64"-25/32" Range 
Buy NowC/O Swiss Made 44586 CAT 50 Tool Holder & 18011 Boring Head, 1/64"-25/32" Range
$200Pay Monthly!MichiganView Sandvik 392.410CGA-100 32 099 a HSK 100 Hydro-Grip Tool Holder, 32 mm Bore, 99 mm Length 
Buy NowSandvik 392.410CGA-100 32 099 a HSK 100 Hydro-Grip Tool Holder, 32 mm Bore, 99 mm Length
$275Pay Monthly!MichiganView Sandvik 3802-000-90030 CAT 50 Taper Collet Holder, Balas Style, Precision Tool Retention 
Buy NowSandvik 3802-000-90030 CAT 50 Taper Collet Holder, Balas Style, Precision Tool Retention
$40Pay Monthly!MichiganView Microbore GAH-10-062 Adjustable Boring Head, 1-1/4" Shank, 5/8" Boring Bar 
Buy NowMicrobore GAH-10-062 Adjustable Boring Head, 1-1/4" Shank, 5/8" Boring Bar
$300Pay Monthly!MichiganView Sandvik Coromant 50mm CAT 50 Collet Holder, 4" Projection, High-Speed Coolant 
Buy NowSandvik Coromant 50mm CAT 50 Collet Holder, 4" Projection, High-Speed Coolant
$35Pay Monthly!MichiganView Sandvik Coromant 50MM-VF3.750-EM7 CAT 50 End Mill Holder, 7/8" ID, 3.750" Projection, AT3 Taper 
Buy NowSandvik Coromant 50MM-VF3.750-EM7 CAT 50 End Mill Holder, 7/8" ID, 3.750" Projection, AT3 Taper
$60Pay Monthly!MichiganView Lyndex C5005-0875 CAT 50 Compression Tap Holder 
Buy NowLyndex C5005-0875 CAT 50 Compression Tap Holder
$300Pay Monthly!MichiganView Command B6C4-0016 BT50 ER16 Collet Holder, Taper Shank, High-Accuracy, Milling/Drilling 
Buy NowCommand B6C4-0016 BT50 ER16 Collet Holder, Taper Shank, High-Accuracy, Milling/Drilling
$50Pay Monthly!MichiganView Valenite V50CT-BB2B-750 Vari-Set Boring Bar, CAT 50, 7.5" Projection, 14 lbs, USA 
Buy NowValenite V50CT-BB2B-750 Vari-Set Boring Bar, CAT 50, 7.5" Projection, 14 lbs, USA
$150Pay Monthly!MichiganView Universal Engineering CAT 50 TG100 Collet Holder, 19" Length, Alloy Steel, CNC Tooling 
Buy NowUniversal Engineering CAT 50 TG100 Collet Holder, 19" Length, Alloy Steel, CNC Tooling
$100Pay Monthly!MichiganView C/O Swiss Made 44586 CAT 50 Tool Holder & 18031 Boring Head, 5/8"-25/32" 
Buy NowC/O Swiss Made 44586 CAT 50 Tool Holder & 18031 Boring Head, 5/8"-25/32"
$200Pay Monthly!MichiganView Xactform HSK100 XCNA-1500 Collet Holder, HSK100 Spindle Interface, High-Performance Stability 
Buy NowXactform HSK100 XCNA-1500 Collet Holder, HSK100 Spindle Interface, High-Performance Stability
$50Pay Monthly!MichiganView Devlieg Microbore GAH-10-062 Boring Head, 5/8" Bar, CAT 50 Shank, 2.25" Head Height 
Buy NowDevlieg Microbore GAH-10-062 Boring Head, 5/8" Bar, CAT 50 Shank, 2.25" Head Height
$350Pay Monthly!Michigan
THE AUCTO ADVANTAGE
Why Buy with Aucto
Transparent Pricing
We work closely with our trusted sellers to ensure transparent and fair pricing on used industrial equipment with absolutely no hidden fees or unexpected costs.
Vetted Equipment
In-stock, ready-to-ship industrial equipment with no lead times. Assets on our site are from vetted sellers and go through a rigorous quality assurance process to ensure everything is real and available immediately.
Financing, Shipping, & Support
We offer monthly payment options, rigging and shipping in the US and Canada, and dedicated support on every sale. Earning the trust of buyers in 82+ countries.
SUPPORT
Frequently Asked Questions
Everything you need to know about buying and selling on Aucto. Can’t find an answer?
What's the difference between CAT40 and CAT50 tool holders?
CAT40 is the common taper on 40-taper VMCs (Haas VF, Brother, many job-shop mills). CAT50 is the heavier taper on 50-taper machines and larger mills — more rigidity, larger facemills. Match the holder to the spindle. Aucto lists both.
Do you sell HSK tool holders?
Yes. HSK holders (including HSK100) appear in this category when they are in stock. Check the listing for the exact HSK size before you buy now or make an offer.
