EXW Singapore — collect or forward from our Singapore office.

3G Electric
OSG 7/8"-14 UNF Straight Flute Hand Tap - General Purpose Hand Taps
OSGGeneral Purpose Hand Taps

OSG 7/8"-14 UNF Straight Flute Hand Tap

The OSG Straight Flute Tap (7/8"-14 UNF) is a general-purpose hand tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer and 4 flutes. It is precision-ground to H6 tolerance for 2B-3B class…

SKU 3G-OTH-221579

Brand
OSG
Item
7/8"-14 UNF Straight Flute Hand Tap
Part Number
1145808
Category
General Purpose Hand Taps
Available to Order
Also known as:1145808OSG
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
1145808
Type
H6 / 2B-3B, Plug Chamfer, TiCN Coated High Speed Steel
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 Straight Flute Tap (7/8"-14 UNF) is a general-purpose hand tap with a TiCN-coated high-speed steel construction, featuring a plug chamfer and 4 flutes. It is precision-ground to H6 tolerance for 2B-3B class threads, identified by manufacturer part number 1145808.

Frequently Asked Questions

What is the OSG 1145808 straight flute tap used for?

The OSG 1145808 straight flute tap is a general-purpose hand tap for threading 7/8"-14 UNF holes in steel and other materials. Its TiCN coating and plug chamfer suit production and maintenance threading across machining, automotive, and industrial equipment applications.

What are the specifications of the OSG 1145808 tap?

The OSG 1145808 is a 7/8"-14 UNF straight flute tap with H6 / 2B-3B tolerance, 4 flutes, plug chamfer, and TiCN-coated high-speed steel. It is designed for general-purpose hand tapping in ferrous and non-ferrous materials.

Where to buy the OSG 1145808 tap worldwide?

3G Electric supplies the OSG 1145808 straight flute tap worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this and other OSG cutting tools across our 14 industrial departments.

How to select the correct tap for 7/8"-14 UNF threads?

For 7/8"-14 UNF threads, choose a tap with matching thread size and pitch, such as the OSG 1145808. Verify the required thread class (e.g., 2B or 3B) and material compatibility. Plug chamfer suits through holes; bottoming chamfer is for blind holes. Always use proper cutting fluid.

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 general purpose hand taps. 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 →
General purpose hand tap for threading small-diameter holes in metal. Features a plug chamfer and two flutes for effective chip evacuation. TiN coating reduces friction and extends tool life. Suitable for through-hole or blind-hole threading in ferrous and non-ferrous materials
OSG
General purpose hand tap for threading small-diameter holes in metal. Features a plug chamfer and two flutes for effective chip evacuation. TiN coating reduces friction and extends tool life. Suitable for through-hole or blind-hole threading in ferrous and non-ferrous materials
High-speed steel hand tap with plug chamfer and 4 flutes for UNC threading. H2 tolerance for 2B-3B class fit. Suitable for through-hole and blind-hole applications in metal
OSG
High-speed steel hand tap with plug chamfer and 4 flutes for UNC threading. H2 tolerance for 2B-3B class fit. Suitable for through-hole and blind-hole applications in metal
General purpose hand tap for cutting internal UNF threads in ferrous and non-ferrous materials. Features a bottoming chamfer for threading close to the bottom of blind holes. H2 tolerance for 2B-3B class fit. Suitable for maintenance, repair, and production applications
OSG
General purpose hand tap for cutting internal UNF threads in ferrous and non-ferrous materials. Features a bottoming chamfer for threading close to the bottom of blind holes. H2 tolerance for 2B-3B class fit. Suitable for maintenance, repair, and production applications

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first