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CHICAGO-LATROBE Spiral Point Tap: 1/2"-13 UNC, H11 / 1B, 3 Flute, Plug Chamfer - Oversized Spiral-Point Taps
CHICAGO-LATROBEOversized Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 1/2"-13 UNC, H11 / 1B, 3 Flute, Plug Chamfer

The CHICAGO-LATROBE Spiral Point Tap (SKU 313508, MPN 313508) is an oversized spiral-point tap with a 1/2"-13 UNC thread size. It features an H11 / 1B tolerance, plug chamfer, 3 flutes, and is made of high-speed steel.

SKU 3G-OTH-251312

Brand
CHICAGO-LATROBE
Item
Spiral Point Tap: 1/2"-13 UNC, H11 / 1B, 3 Flute, Plug Chamfer
Category
Oversized 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
313508
Type
H11 / 1B, Plug Chamfer, High Speed Steel
Flute
3

Technical Documents

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

Product Description

The CHICAGO-LATROBE Spiral Point Tap (SKU 313508, MPN 313508) is an oversized spiral-point tap with a 1/2"-13 UNC thread size. It features an H11 / 1B tolerance, plug chamfer, 3 flutes, and is made of high-speed steel.

Frequently Asked Questions

What is a CHICAGO-LATROBE spiral point tap used for?

A CHICAGO-LATROBE spiral point tap is used for through-hole threading in metalworking. Its spiral-point design pushes chips ahead, preventing clogging. This 1/2"-13 UNC tap with H11/1B tolerance is ideal for production tapping in steel and alloys, common in automotive and general machining.

What are the specifications of the CHICAGO-LATROBE 313508 tap?

The CHICAGO-LATROBE 313508 is a 1/2"-13 UNC oversized spiral-point tap with H11/1B thread class, 3 flutes, and plug chamfer. It is made of high-speed steel (HSS) for durability. This tap is designed for through-hole threading in ferrous materials.

Where to buy CHICAGO-LATROBE taps in worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 313508 spiral point tap or other cutting tools.

How to select the right tap for through-hole threading?

For through-hole threading, choose a spiral point tap like this CHICAGO-LATROBE 1/2"-13 UNC model. Ensure the tap matches the thread size, pitch, and material. Plug chamfer is standard for most applications. High-speed steel suits general-purpose use; consider coated HSS for harder materials.

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 oversized 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: 1/2"-20 UNF, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313509)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/2"-20 UNF, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313509)
CHICAGO-LATROBE Spiral Point Tap: 7/16"-14 UNC, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313506)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 7/16"-14 UNC, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313506)
CHICAGO-LATROBE Spiral Point Tap: 3/8"-16 UNC, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313504)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 3/8"-16 UNC, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313504)
CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313505)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313505)
CHICAGO-LATROBE Spiral Point Tap: 3/4"-10 UNC, H11 / 1B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 313512)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 3/4"-10 UNC, H11 / 1B, 4 Flute, Plug Chamfer, High Speed Steel (MPN 313512)
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313500)
CHICAGO-LATROBE
CHICAGO-LATROBE Spiral Point Tap: 1/4"-20 UNC, H11 / 1B, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313500)

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