Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Plug Chamfer (MPN 357047) - General Purpose Spiral-Point Taps
CHICAGO-LATROBEGeneral Purpose Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Plug Chamfer (MPN 357047)

CHICAGO-LATROBE General Purpose Spiral-Point Taps.

SKU 3G-OTH-214144

Brand
CHICAGO-LATROBE
Item
Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 2 Flute, Plug Chamfer
Category
General Purpose Spiral-Point Taps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
357047

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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 357047 used for?

This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its 2-flute design pushes chips ahead, reducing clogging and breakage. Common applications include automotive, aerospace, and general manufacturing where clean, accurate internal threads are required.

What are the specifications of the CHICAGO-LATROBE Spiral Point Tap 357047?

This tap has a 1/4"-20 UNC thread size with H3 / 2B tolerance, 2 flutes, and a plug chamfer. The manufacturer part number is 357047. It is a general-purpose spiral-point tap designed for through-hole threading in a variety of materials.

Where to buy CHICAGO-LATROBE taps in worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 357047 spiral-point tap.

How to select the correct spiral point tap for through holes?

For through holes, a spiral-point tap pushes chips forward, preventing clogging. Match the tap size (e.g., 1/4"-20 UNC) to your hole diameter and thread class (e.g., 2B). Use a plug chamfer for general applications. Always verify material compatibility and tap coating for extended tool life.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H2 / 2B, 2 Flute, Plug Chamfer (MPN 357021)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H2 / 2B, 2 Flute, Plug Chamfer (MPN 357021)
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral-point geometry pushes chips forward, reducing clogging and breakage. Suitable for general manufacturing applications requiring 1/4"-20 UNC threads with H5 tolerance for 2B-3B class fit
CHICAGO-LATROBE
This spiral-point tap is designed for through-hole threading in ferrous and non-ferrous materials. Its spiral-point geometry pushes chips forward, reducing clogging and breakage. Suitable for general manufacturing applications requiring 1/4"-20 UNC threads with H5 tolerance for 2B-3B class fit
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a 1/2"-20 UNF thread, H3/2B class of fit, 3 flutes, and plug chamfer. Suitable for manufacturing and maintenance tapping operations
CHICAGO-LATROBE
General purpose spiral-point tap for through-hole threading in ferrous and non-ferrous materials. Features a 1/2"-20 UNF thread, H3/2B class of fit, 3 flutes, and plug chamfer. Suitable for manufacturing and maintenance tapping operations
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Plug Chamfer (MPN 357401)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 5/16"-24 UNF, H3 / 2B, 2 Flute, Plug Chamfer (MPN 357401)
CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 357609)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 357609)
Spiral-point tap designed for through-hole threading in ferrous and non-ferrous materials. The 2-flute design pushes chips forward to reduce clogging and breakage. Features a 5/16"-18 UNC thread size with H3 / 2B tolerance and plug chamfer
CHICAGO-LATROBE
Spiral-point tap designed for through-hole threading in ferrous and non-ferrous materials. The 2-flute design pushes chips forward to reduce clogging and breakage. Features a 5/16"-18 UNC thread size with H3 / 2B tolerance and plug chamfer

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
CHICAGO-LATROBE Spiral Point Tap: M1.8x0.35 Metric, D3 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330131)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: M1.8x0.35 Metric, D3 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 330131)
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280306)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H3 / 2B, 3 Flute, Plug Chamfer (MPN 280306)
CHICAGO-LATROBE Spiral Point Tap: #4-48 UNF, H2 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 356365)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: #4-48 UNF, H2 / 2B, 2 Flute, Plug Chamfer, High Speed Steel (MPN 356365)
This spiral-point tap is designed for through-hole threading in metalworking applications. Its spiral-point geometry pushes chips forward, reducing clogging and enabling efficient thread production. Constructed from high-speed steel with a plug chamfer and 3-flute design, it is suited for general purpose threading in ferrous and non-ferrous materials
CHICAGO-LATROBE
This spiral-point tap is designed for through-hole threading in metalworking applications. Its spiral-point geometry pushes chips forward, reducing clogging and enabling efficient thread production. Constructed from high-speed steel with a plug chamfer and 3-flute design, it is suited for general purpose threading in ferrous and non-ferrous materials
This general purpose spiral-point tap is designed for through-hole threading in production environments. Constructed from high-speed steel with a plug chamfer and 3 flutes, it features an H3 / 2B tolerance for precise thread cutting. The spiral-point design pushes chips forward, reducing clogging and enabling efficient tapping in materials such as steel and aluminum
CHICAGO-LATROBE
This general purpose spiral-point tap is designed for through-hole threading in production environments. Constructed from high-speed steel with a plug chamfer and 3 flutes, it features an H3 / 2B tolerance for precise thread cutting. The spiral-point design pushes chips forward, reducing clogging and enabling efficient tapping in materials such as steel and aluminum
General purpose spiral-point tap with 5/16"-18 UNC thread, H5 / 2B-3B tolerance, 3 flutes, and plug chamfer. Designed for through-hole tapping, the spiral point pushes chips forward to prevent clogging. Suitable for threading in steel, cast iron, and other common materials in machining and manufacturing applications
CHICAGO-LATROBE
General purpose spiral-point tap with 5/16"-18 UNC thread, H5 / 2B-3B tolerance, 3 flutes, and plug chamfer. Designed for through-hole tapping, the spiral point pushes chips forward to prevent clogging. Suitable for threading in steel, cast iron, and other common materials in machining and manufacturing applications
This spiral-point tap is designed for through-hole threading applications, directing chips forward to prevent clogging. It features a bottoming chamfer for threading close to the bottom of blind holes. With H3 / 2B tolerance and 3 flutes, it is suited for general purpose threading in ferrous and non-ferrous materials
CHICAGO-LATROBE
This spiral-point tap is designed for through-hole threading applications, directing chips forward to prevent clogging. It features a bottoming chamfer for threading close to the bottom of blind holes. With H3 / 2B tolerance and 3 flutes, it is suited for general purpose threading in ferrous and non-ferrous materials
CHICAGO-LATROBE Spiral Point Tap: M3.5x0.6 Metric, D4 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 360821)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: M3.5x0.6 Metric, D4 / 6H, 2 Flute, Plug Chamfer, High Speed Steel (MPN 360821)