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OSG Straight Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 4 Flute - Coolant-Through Straight-Flute Machine Taps for Aluminum
OSGCoolant-Through Straight-Flute Machine Taps for Aluminum

OSG Straight Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 4 Flute

SKU 3G-OTH-207634

Brand
OSG
Item
Straight Flute Tap: 7/16"-20 UNF, H3 / 2B-3B, 4 Flute
Category
Coolant-Through Straight-Flute Machine Taps for Aluminum
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Technical Specifications

OSG
Manufacturer Part Number
1005301208
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is an OSG straight flute tap used for?

An OSG straight flute tap is used for threading holes in aluminum and non-ferrous materials. The 7/16"-20 UNF bottoming chamfer design allows threading to the bottom of blind holes, while coolant-through flutes improve chip evacuation and lubrication in production machining.

What are the specifications of the OSG 1005301208 tap?

The OSG 1005301208 is a straight flute tap with 7/16"-20 UNF thread, H3 / 2B-3B tolerance, 4 flutes, and a bottoming chamfer. It is designed for coolant-through operation in aluminum. The H3 ground thread limit ensures precise fit for 2B-3B class threads.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide, handling full logistics and customs clearance. As a global industrial sourcing partner, we provide genuine OSG cutting tools like the 1005301208 straight flute tap for aluminum threading. Contact us for pricing and delivery to your location.

How to select the right tap for aluminum threading?

For aluminum, choose a tap with polished flutes and coolant-through capability to reduce built-up edge. The OSG straight flute tap with H3 / 2B-3B tolerance and bottoming chamfer is ideal for blind holes. Match thread size (7/16"-20 UNF) and ensure proper cutting speed and lubrication.

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 coolant-through 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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