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OSG 1/2"-20 UNF Left-Hand Straight Flute Tap - Left-Hand Thread Taps
OSGLeft-Hand Thread Taps

OSG 1/2"-20 UNF Left-Hand Straight Flute Tap

The OSG Straight Flute Tap (MPN 1662000) is a left-hand thread tap for 1/2"-20 UNF applications. It features a bottoming chamfer, H3 / 2B-3B tolerance, 4 flutes, and is made of high-speed steel. 3G Electric…

SKU 3G-OTH-265154

Brand
OSG
Item
1/2"-20 UNF Left-Hand Straight Flute Tap
Part Number
1662000
Category
Left-Hand Thread Taps
Available to Order
Also known as:1662000OSG
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Technical Specifications

OSG
Manufacturer Part Number
1662000
Type
H3 / 2B-3B, Bottoming Chamfer, LH, High Speed Steel
Flute
4

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Straight Flute Tap (MPN 1662000) is a left-hand thread tap for 1/2"-20 UNF applications. It features a bottoming chamfer, H3 / 2B-3B tolerance, 4 flutes, and is made of high-speed steel. 3G Electric interprets this demand and sources the genuine OSG product, supporting your industrial threading needs across 14 departments.

Frequently Asked Questions

What is the OSG Straight Flute Tap 1662000 used for?

This OSG tap is used for cutting left-hand internal threads in metal components. It is ideal for applications requiring UNF threads, such as automotive, aerospace, and general manufacturing, where precise thread forming is critical.

What are the specifications of the OSG Straight Flute Tap 1662000?

The OSG Straight Flute Tap has a 1/2"-20 UNF thread size, H3 tolerance for 2B-3B class fit, 4 flute design, bottoming chamfer, left-hand (LH) rotation, and is made from high-speed steel. The manufacturer part number is 1662000.

Where to buy the OSG Straight Flute Tap 1662000 worldwide?

You can source the OSG Straight Flute Tap 1662000 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations, ensuring reliable supply for your operations.

How to select the correct OSG tap for left-hand threads?

To select the correct OSG tap, match the thread size (e.g., 1/2"-20 UNF), thread direction (left-hand), chamfer type (bottoming for blind holes), and material (high-speed steel for general use). Always verify the part number, such as 1662000, for exact specifications.

Used in

Common applications for OSG
Aerospace — OSG STI taps for installing helical wire thread inserts in aluminum components
Automotive — OSG spiral-point taps for through-hole threading in engine blocks and transmission cases
General machining — OSG spiral-flute taps for blind-hole threading in steel and stainless steel parts
Heavy equipment repair — OSG thread-forming taps for creating threads in ductile iron and steel castings
Precision manufacturing — OSG solid carbide chucking reamers for finishing holes in hydraulic manifolds
Die and mold — OSG coolant-through solid carbide drills for deep-hole drilling in tool steels
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OSG Products

3G Electric supplies OSG left-hand thread taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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