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OSG Spiral Flute Tap: 1 1/2"-8 8UN, H9 / 2B-3B, 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral Flute Tap: 1 1/2"-8 8UN, H9 / 2B-3B, 4 Flute

The OSG Spiral Flute Tap (1 1/2"-8 8UN) is a spiral-flute tap for steel and stainless steel, featuring an H9 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer (MPN 1650508108). 3G Electric interprets this…

SKU 3G-OTH-218815

Brand
OSG
Item
Spiral Flute Tap: 1 1/2"-8 8UN, H9 / 2B-3B, 4 Flute
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OSG
Manufacturer Part Number
1650508108
Type
H9 / 2B-3B, Modified Bottoming Chamfer
Flute
4

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

Product Description

The OSG Spiral Flute Tap (1 1/2"-8 8UN) is a spiral-flute tap for steel and stainless steel, featuring an H9 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer (MPN 1650508108). 3G Electric interprets this demand and delivers genuine industrial equipment across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the OSG spiral flute tap 1 1/2"-8 8UN used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its modified bottoming chamfer and 4-flute design efficiently evacuate chips upward, making it ideal for high-accuracy tapping in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap MPN 1650508108?

The OSG spiral flute tap has a thread size of 1 1/2"-8 8UN, with a tolerance class of H9 / 2B-3B. It features 4 flutes and a modified bottoming chamfer. The manufacturer part number is 1650508108, and it is suited for threading steel and stainless steel.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps like the 1 1/2"-8 8UN spiral flute tap to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this and other OSG threading tools.

How to select the right spiral flute tap for steel?

For threading blind holes in steel, choose a spiral flute tap with a modified bottoming chamfer, like this OSG H9 / 2B-3B model. Ensure the thread size (e.g., 1 1/2"-8 8UN) matches your application. Use proper cutting fluid and machine speed per OSG recommendations for best thread quality.

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 spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Spiral-flute tap for threading steel and stainless steel. Thread size 1 3/8"-8 8UN with H9 / 2B-3B tolerance. 4-flute design with modified bottoming chamfer. Suitable for blind-hole threading where chip evacuation is required
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Spiral-flute tap for threading steel and stainless steel. Thread size 1 3/8"-8 8UN with H9 / 2B-3B tolerance. 4-flute design with modified bottoming chamfer. Suitable for blind-hole threading where chip evacuation is required
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 4 flutes to evacuate chips upward, preventing clogging. Tolerance class H9 / 2B-3B. Thread size 1 1/8"-8 8UN
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features 4 flutes, H8 / 2B-3B tolerance, and modified bottoming chamfer. The spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. Suitable for general manufacturing applications requiring precise internal threading
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features 4 flutes, H8 / 2B-3B tolerance, and modified bottoming chamfer. The spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. Suitable for general manufacturing applications requiring precise internal threading
Spiral-flute tap for threading steel and stainless steel. Features 4 flutes and a modified bottoming chamfer. Tolerance class H10 / 2B-3B. Suitable for blind-hole threading where chip evacuation is required
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Spiral-flute tap for threading steel and stainless steel. Features 4 flutes and a modified bottoming chamfer. Tolerance class H10 / 2B-3B. Suitable for blind-hole threading where chip evacuation is required

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This spiral-flute tap is designed for threading blind holes in steel and stainless steel. The 4-flute design with modified bottoming chamfer facilitates chip evacuation upward, reducing clogging. It is suitable for general manufacturing applications requiring precise internal threads
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Spiral-flute tap with 3 flutes, H7 / 2B-3B tolerance, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward to prevent clogging. Suitable for general manufacturing applications requiring UNF threads
Metric spiral-flute tap with M20x2.5 thread size, D7 / 4H-6H tolerance class, 4 flutes, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute evacuates chips upward to prevent clogging in deep holes
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