Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Image not available
OSGHelical-Flute Thread Mills for Steel, Cast Iron & Hardened Steel

OSG Thread Mill: Helical Flute, 1/4"-18 NPTF, 5 Flute

OSG Helical-Flute Thread Mills for Steel, Cast Iron & Hardened Steel.

SKU 3G-OTH-235435

Brand
OSG
Item
Thread Mill: Helical Flute, 1/4"-18 NPTF, 5 Flute
Category
Helical-Flute Thread Mills for Steel, Cast Iron & Hardened Steel
Available to Order
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.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1663100217

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

OSG Helical-Flute Thread Mills for Steel, Cast Iron & Hardened Steel.

Frequently Asked Questions

What is an OSG helical-flute thread mill used for?

An OSG helical-flute thread mill is used for cutting internal or external threads in steel, cast iron, and hardened steel. Its EgiAs coated carbide construction provides heat resistance and wear life for demanding industrial threading applications.

What are the specifications of the OSG thread mill 1663100217?

The OSG thread mill model 1663100217 has a 1/4"-18 NPTF thread size, 5 flutes, and helical-flute geometry. It is made of EgiAs coated carbide, designed for threading in steel, cast iron, and hardened steel. The manufacturer part number is 1663100217.

Where to buy OSG thread mills worldwide?

3G Electric supplies OSG thread mills worldwide, including the helical-flute model 1663100217. 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.

How to select the right OSG thread mill for hardened steel?

For hardened steel, choose an OSG thread mill with EgiAs coating and helical flutes, like model 1663100217. Match the thread size (e.g., 1/4"-18 NPTF) and flute count to your application. Consult OSG's technical data for feed and speed recommendations.

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 helical-flute thread mills for steel, cast iron & hardened 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
OSG
OSG
Helical-flute thread mill for threading steel, cast iron, and hardened steel. Creates 1/4"-18 NPT threads. Features 5 flutes and EgiAs coated carbide construction for wear resistance and heat dissipation
OSG
OSG
OSG Thread Mill: Helical Flute, 1/8"-27 NPTF, 4 Flute, EgiAs Coated Carbide (MPN 1663100117)
OSG
OSG
OSG Thread Mill: Helical Flute, 1/2"-14 NPT, 5 Flute, EgiAs Coated Carbide (MPN 1663000417)
OSG
OSG
OSG Thread Mill: Helical Flute, 1/16"-27 NPTF, 4 Flute, EgiAs Coated Carbide (MPN 1663100017)
OSG
OSG
OSG Thread Mill: Helical Flute, 3/8"-18 NPT, 5 Flute, EgiAs Coated Carbide (MPN 1663000317)
OSG
OSG
OSG Thread Mill: Helical Flute, 1/8"-27 NPT, 4 Flute, EgiAs Coated Carbide (MPN 1663000117)

More from OSG

View all OSG parts
OSG
OSG
This helical-flute thread mill is designed for cutting internal threads in steel, cast iron, and hardened steel. It features an M10x1.5 metric thread size, 4 flutes, and is constructed from EgiAs coated carbide for efficient chip evacuation and extended tool life in industrial threading applications
OSG
OSG
This OSG helical-flute thread mill is designed for cutting internal threads in steel, cast iron, and hardened steel. It features an M14x2 metric thread size, 5 flutes, and EgiAs coated carbide construction for wear resistance and heat dissipation. Suitable for high-speed machining applications in general manufacturing
This helical-flute thread mill is designed for cutting internal threads in steel, cast iron, and hardened steel. It features a metric thread size of M16x1.5 with 5 flutes and is constructed from EgiAs coated carbide for wear resistance and heat dissipation. Suitable for high-precision threading in demanding machining applications
OSG
This helical-flute thread mill is designed for cutting internal threads in steel, cast iron, and hardened steel. It features a metric thread size of M16x1.5 with 5 flutes and is constructed from EgiAs coated carbide for wear resistance and heat dissipation. Suitable for high-precision threading in demanding machining applications
This OSG helical-flute thread mill is designed for threading steel, cast iron, and hardened steel. It features a 7/8"-14 UNF thread size, 5 flutes, and EgiAs coated carbide construction for efficient chip evacuation and extended tool life in demanding industrial applications
OSG
This OSG helical-flute thread mill is designed for threading steel, cast iron, and hardened steel. It features a 7/8"-14 UNF thread size, 5 flutes, and EgiAs coated carbide construction for efficient chip evacuation and extended tool life in demanding industrial applications
This OSG helical-flute thread mill is designed for cutting internal threads in steel, cast iron, and hardened steel. It features a M20x2.5 metric thread size, 5 flutes, and EgiAs coated carbide construction for wear resistance and heat dissipation. Suitable for high-speed machining in demanding industrial applications
OSG
This OSG helical-flute thread mill is designed for cutting internal threads in steel, cast iron, and hardened steel. It features a M20x2.5 metric thread size, 5 flutes, and EgiAs coated carbide construction for wear resistance and heat dissipation. Suitable for high-speed machining in demanding industrial applications
OSG
OSG
This helical-flute thread mill is designed for cutting internal threads in steel, cast iron, and hardened steel. It features an M18x2.5 metric thread size, 5 flutes, and EgiAs coated carbide construction for wear resistance and heat dissipation. Suitable for high-speed machining in industrial applications
OSG
OSG
This helical-flute thread mill is designed for threading steel, cast iron, and hardened steel. It features a 1/2"-14 NPTF thread size, 5 flutes, and EgiAs coated carbide construction for wear resistance and heat dissipation. Suitable for producing NPTF threads in industrial applications
OSG
OSG
This helical-flute thread mill from OSG is designed for cutting internal threads in steel, cast iron, and hardened steel. It features a 5-flute design with EgiAs coated carbide construction for wear resistance and heat dissipation. The tool cuts M12x1.75 metric threads and is suitable for high-speed machining in industrial applications