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CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 330121) - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 330121)

CHICAGO-LATROBE General Purpose Spiral-Point Taps.

SKU 3G-OTH-215310

Brand
CHICAGO-LATROBE
Item
Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
330121

Technical Documents

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

CHICAGO-LATROBE General Purpose Spiral-Point Taps.

Frequently Asked Questions

What is the CHICAGO-LATROBE Spiral Point Tap 330121 used for?

The CHICAGO-LATROBE Spiral Point Tap 330121 is used for threading through-holes in metal, steel, and alloys. Its spiral-point design pushes chips forward, preventing clogging. Common applications include automotive, aerospace, and general manufacturing where precise UNF threads are required.

What are the specifications of the CHICAGO-LATROBE 330121 tap?

The CHICAGO-LATROBE 330121 is a 3/8"-24 UNF spiral point tap with H3 tolerance and 2B class fit. It has 3 flutes and a plug chamfer. The manufacturer part number is 330121. This tap is designed for general purpose threading in ferrous and non-ferrous materials.

Where to buy CHICAGO-LATROBE taps in worldwide?

You can source CHICAGO-LATROBE taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the 330121 spiral point tap.

How to select the correct CHICAGO-LATROBE tap for UNF threads?

To select the correct CHICAGO-LATROBE tap, match the thread size and pitch (e.g., 3/8"-24 UNF) to your application. Use a spiral point tap for through-holes and a spiral flute tap for blind holes. Verify the chamfer type (plug, bottoming, or taper) based on hole depth. Always consult the manufacturer's recommendations for material-specific speeds and feeds.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 330162)
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CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 330162)
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Plug Chamfer (MPN 330118)
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CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Plug Chamfer (MPN 330118)
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. The spiral-point geometry pushes chips forward, reducing clogging and breakage. Common applications include general manufacturing where clean UNC threads are required
CHICAGO-LATROBE
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. The spiral-point geometry pushes chips forward, reducing clogging and breakage. Common applications include general manufacturing where clean UNC threads are required
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H4 / 2B, 3 Flute, Plug Chamfer (MPN 330160)
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CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H4 / 2B, 3 Flute, Plug Chamfer (MPN 330160)
Spiral-point tap designed for through-hole threading in production environments. The spiral point pushes chips ahead, preventing clogging and enabling faster tapping in materials such as steel and aluminum. Thread size 5/8"-18 UNF, H3 / 2B tolerance, 3 flutes, plug chamfer
CHICAGO-LATROBE
Spiral-point tap designed for through-hole threading in production environments. The spiral point pushes chips ahead, preventing clogging and enabling faster tapping in materials such as steel and aluminum. Thread size 5/8"-18 UNF, H3 / 2B tolerance, 3 flutes, plug chamfer
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a 7/16"-14 UNC thread size, H3 / 2B tolerance, 3 flutes, and plug chamfer. The spiral point design pushes chips forward to prevent clogging, enabling efficient threading in production environments
CHICAGO-LATROBE
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a 7/16"-14 UNC thread size, H3 / 2B tolerance, 3 flutes, and plug chamfer. The spiral point design pushes chips forward to prevent clogging, enabling efficient threading in production environments

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Spiral-point tap designed for threading through or blind holes in production machining. The spiral-point geometry pushes chips forward, reducing clogging in ferrous and non-ferrous materials. Suitable for general-purpose threading applications
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Spiral-point tap designed for threading through or blind holes in production machining. The spiral-point geometry pushes chips forward, reducing clogging in ferrous and non-ferrous materials. Suitable for general-purpose threading applications
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CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H3 / 2B, 2 Flute, Plug Chamfer (MPN 173023)
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CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H3 / 2B, 2 Flute, Plug Chamfer (MPN 173023)
CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H3 / 2B, 2 Flute, Plug Chamfer (MPN 330116)
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CHICAGO-LATROBE Spiral Point Tap: 5/16"-18 UNC, H3 / 2B, 2 Flute, Plug Chamfer (MPN 330116)
This spiral-point tap is designed for threading blind holes in production machining. The spiral point pushes chips forward, reducing clogging and enabling efficient tapping in ferrous and non-ferrous materials. Made from high speed steel with a plug chamfer and 2 flutes, it provides a H2 / 2B class fit for #4-40 UNC threads
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This spiral-point tap is designed for threading blind holes in production machining. The spiral point pushes chips forward, reducing clogging and enabling efficient tapping in ferrous and non-ferrous materials. Made from high speed steel with a plug chamfer and 2 flutes, it provides a H2 / 2B class fit for #4-40 UNC threads
CHICAGO-LATROBE Spiral Point Tap: M1.8x0.35 Metric, D3 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330131)
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