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CHICAGO-LATROBE Spiral Point Tap: 1/2"-20 UNF, H11 / 1B, 3 Flute, Plug Chamfer - Oversized Spiral-Point Taps
CHICAGO-LATROBEOversized Spiral-Point Taps

CHICAGO-LATROBE Spiral Point Tap: 1/2"-20 UNF, H11 / 1B, 3 Flute, Plug Chamfer

SKU 3G-OTH-251203

Brand
CHICAGO-LATROBE
Item
Spiral Point Tap: 1/2"-20 UNF, H11 / 1B, 3 Flute, Plug Chamfer
Category
Oversized Spiral-Point Taps
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
313509
Type
H11 / 1B, Plug Chamfer, High Speed Steel
Flute
3
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

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"-20 UNF tap with H11/1B tolerance is ideal for precision threading in production machining, automotive, and general manufacturing applications.

What are the specifications of the CHICAGO-LATROBE 313509 tap?

The CHICAGO-LATROBE 313509 is a 1/2"-20 UNF spiral point tap with H11/1B oversize tolerance. It has 3 flutes, a plug chamfer, and is made of high speed steel. This design provides chip evacuation and thread accuracy in through-hole applications.

Where to buy CHICAGO-LATROBE taps in worldwide?

3G Electric supplies CHICAGO-LATROBE taps worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 313509 spiral point tap or other CHICAGO-LATROBE tooling.

How to select the right CHICAGO-LATROBE tap for a job?

Select a CHICAGO-LATROBE tap based on thread size, pitch, material, and hole type. For through holes, a spiral point tap like the 313509 pushes chips forward. For blind holes, use a spiral flute tap. Match the tap tolerance (e.g., H11/1B) to your required thread class.

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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