EXW Singapore — collect or forward from our Singapore office.

3G Electric
OSG Spiral-Flute Tap 7/8"-9 UNC H6 / 2B-3B Modified Bottoming Chamfer 4 Flute - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG Spiral-Flute Tap 7/8"-9 UNC H6 / 2B-3B Modified Bottoming Chamfer 4 Flute

The OSG Spiral Flute Tap (7/8"-9 UNC, MPN 1645078096) is a 4-flute tap with H6 / 2B-3B tolerance and a modified bottoming chamfer, designed for threading steel and stainless steel. 3G Electric interprets this demand…

SKU 3G-OTH-219000

Brand
OSG
Item
Spiral-Flute Tap 7/8"-9 UNC H6 / 2B-3B Modified Bottoming Chamfer 4 Flute
Part Number
1645078096
Category
Spiral-Flute Taps for Steel & Stainless Steel
Available to Order
Also known as:1645078096OSG
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1645078096
Type
H6 / 2B-3B, Modified Bottoming Chamfer
Flute
4

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OSG Spiral Flute Tap (7/8"-9 UNC, MPN 1645078096) is a 4-flute tap with H6 / 2B-3B tolerance and a modified bottoming chamfer, designed for threading steel and stainless steel. 3G Electric interprets this demand and sources the genuine OEM part, backed by specialist expertise across 14 industrial departments.

Frequently Asked Questions

What is the OSG spiral flute tap 7/8"-9 UNC 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-production tapping applications where thread depth and surface finish are critical.

What are the specifications of the OSG 7/8"-9 UNC spiral flute tap?

The OSG spiral flute tap has a 7/8"-9 UNC thread size, H6 / 2B-3B tolerance, 4 flutes, and a modified bottoming chamfer. The manufacturer part number is 1645078096. It is designed for threading blind holes in steel and stainless steel materials.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the OSG spiral flute tap 7/8"-9 UNC (MPN 1645078096).

How to select the correct OSG tap for steel threading?

For steel threading, choose a spiral flute tap like this OSG 7/8"-9 UNC model when tapping blind holes. The H6 / 2B-3B tolerance ensures proper fit. Verify thread size, chamfer type, and material compatibility. For best results, use appropriate cutting fluid and follow OSG's recommended speeds and feeds.

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
Not sure this is the right part? Photo-identify it→

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from OSG

View all OSG parts →
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size, H5 tolerance, 2B-3B class, modified bottoming chamfer, 3 flutes. Lifts chips upward to prevent clogging in deep or blind holes
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. #10-24 UNC thread size, H5 tolerance, 2B-3B class, modified bottoming chamfer, 3 flutes. Lifts chips upward to prevent clogging in deep or blind holes
Spiral-flute tap for threading blind holes in steel and stainless steel. 3/8"-24 UNF thread, H4 / 2B-3B tolerance, bottoming chamfer, 3 flutes. V coated powdered metal construction. Chips evacuate upward, preventing clogging in blind-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. 3/8"-24 UNF thread, H4 / 2B-3B tolerance, bottoming chamfer, 3 flutes. V coated powdered metal construction. Chips evacuate upward, preventing clogging in blind-hole applications
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H4 tolerance for 2B-3B thread classes, and a modified bottoming chamfer for threading close to hole bottoms. Part number 1722908
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H4 tolerance for 2B-3B thread classes, and a modified bottoming chamfer for threading close to hole bottoms. Part number 1722908
Spiral-flute tap for threading blind holes in steel and stainless steel. M22x1.5 metric thread, D6 / 4H-6H tolerance, 4 flutes, modified bottoming chamfer. Chip-lifting flute design prevents clogging in deep holes
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. M22x1.5 metric thread, D6 / 4H-6H tolerance, 4 flutes, modified bottoming chamfer. Chip-lifting flute design prevents clogging in deep holes
OSG Spiral Flute Tap: M36x1.5 Metric, D8 / 4H-6H, 4 Flute, Modified Bottoming Chamfer (MPN 1650008108)
OSG
OSG Spiral Flute Tap: M36x1.5 Metric, D8 / 4H-6H, 4 Flute, Modified Bottoming Chamfer (MPN 1650008108)
OSG Spiral Flute Tap: M5x0.8 Metric, D4 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1705708)
OSG
OSG Spiral Flute Tap: M5x0.8 Metric, D4 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1705708)
OSG Spiral Flute Tap: M22x1 Metric, D5 / 4H-6H, 4 Flute, Modified Bottoming Chamfer (MPN 1650006808)
OSG
OSG Spiral Flute Tap: M22x1 Metric, D5 / 4H-6H, 4 Flute, Modified Bottoming Chamfer (MPN 1650006808)
Spiral-flute tap with 5/16-18 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute lifts chips upward to prevent clogging. Suitable for general manufacturing applications requiring clean threads to the bottom of holes
OSG
Spiral-flute tap with 5/16-18 UNC thread size, H3 / 2B-3B tolerance, 3 flutes, and bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute lifts chips upward to prevent clogging. Suitable for general manufacturing applications requiring clean threads to the bottom of holes

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first