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OSG Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer - Straight-Flute Machine Taps for Aluminum
OSGStraight-Flute Machine Taps for Aluminum

OSG Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer

The OSG Straight Flute Tap (1/2"-20 UNF) is a bottoming-chamfer, 4-flute machine tap for aluminum, made from V-coated powdered metal with H5 / 2B-3B tolerance class (MPN 1005201708). 3G Electric interprets this…

SKU 3G-OTH-211090

Brand
OSG
Item
Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer
Category
Straight-Flute Machine Taps for Aluminum
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Technical Specifications

OSG
Manufacturer Part Number
1005201708
Type
H5 / 2B-3B, Bottoming Chamfer, V Coated Powdered Metal
Flute
4

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

Product Description

The OSG Straight Flute Tap (1/2"-20 UNF) is a bottoming-chamfer, 4-flute machine tap for aluminum, made from V-coated powdered metal with H5 / 2B-3B tolerance class (MPN 1005201708). 3G Electric interprets this demand and sources the genuine OSG tap, backed by our specialist expertise across 14 industrial departments — including cutting tools — and our trusted depth in combustion, pumps and controls.

Frequently Asked Questions

What is OSG straight flute tap 1/2-20 UNF used for?

This OSG straight flute tap is designed for threading blind holes in aluminum and non-ferrous materials. Its bottoming chamfer allows threading close to the hole bottom, while the V-coated powdered metal construction provides wear resistance for production tapping.

What are the specifications of OSG tap 1005201708?

The OSG tap has a 1/2-20 UNF thread, H5 tolerance for 2B-3B class fit, 4 flutes, and a bottoming chamfer. It is made of V-coated powdered metal. The manufacturer part number is 1005201708.

Where to buy OSG straight flute tap 1/2-20 UNF worldwide?

3G Electric supplies and delivers this OSG straight flute tap worldwide. We handle full logistics and customs clearance to ensure the tap reaches your facility, whether for maintenance or production runs.

How to select the right tap for aluminum threading?

For aluminum, choose a tap with a polished flute and coating to reduce chip adhesion. A bottoming chamfer suits blind holes, while a plug chamfer works for through holes. Match thread size and class (e.g., 1/2-20 UNF, H5) to your application.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG straight-flute machine taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Cross-referenced by specification & description
OSG Straight Flute Tap: 7/8"-14 UNF, H5 / 2B-3B, 5 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1005203308)
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OSG Straight Flute Tap: 1/2"-20 UNF, H5 / 2B-3B, 4 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1005601708)
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OSG Straight Flute Tap: 3/4"-10 UNC, H5 / 2B-3B, 5 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1005202708)
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OSG Straight Flute Tap: 5/8"-11 UNC, H5 / 2B-3B, 5 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1005202308)

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