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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
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
357047

Technical Documents

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

Product Description

CHICAGO-LATROBE General Purpose Spiral-Point Taps.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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.

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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: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 357609)
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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
Spiral-point tap designed for through-hole threading in production environments. Features a 7/16"-20 UNF thread size, H3 / 2B tolerance, 3-flute design, and plug chamfer. Suitable for general-purpose tapping in metals
CHICAGO-LATROBE
Spiral-point tap designed for through-hole threading in production environments. Features a 7/16"-20 UNF thread size, H3 / 2B tolerance, 3-flute design, and plug chamfer. Suitable for general-purpose tapping in metals

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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
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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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