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

OSG M16x2 Spiral-Flute Tap, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG M16x2 Spiral-Flute Tap, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer

The OSG Spiral Flute Tap (M16x2 Metric, MPN 1645516205) is a D5 / 4H-6H, 3-flute, modified bottoming chamfer tap designed for threading steel and stainless steel. 3G Electric sources this genuine OSG tool as part of…

SKU 3G-OTH-217991

Brand
OSG
Item
M16x2 Spiral-Flute Tap, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer
Category
Spiral-Flute Taps for Steel & Stainless 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
1645516205
Type
D5 / 4H-6H, Modified Bottoming Chamfer
Flute
3

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 (M16x2 Metric, MPN 1645516205) is a D5 / 4H-6H, 3-flute, modified bottoming chamfer tap designed for threading steel and stainless steel. 3G Electric sources this genuine OSG tool as part of our broad industrial supply across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring accurate sourcing and support.

Frequently Asked Questions

What is the OSG spiral flute tap M16x2 used for?

The OSG spiral flute tap M16x2 is designed for threading blind holes in steel and stainless steel. Its spiral flute design evacuates chips upward, preventing clogging and ensuring clean threads. It is commonly used in automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap M16x2?

This OSG tap has a metric M16x2 thread size, a D5 / 4H-6H tolerance class, and a 3-flute design with a modified bottoming chamfer. The manufacturer part number is 1645516205. It is suitable for threading blind holes in steel and stainless steel materials.

Where to buy OSG spiral flute taps worldwide?

You can source OSG spiral flute taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on this and other OSG cutting tools.

How to select the correct OSG spiral flute tap for steel?

To select the correct OSG spiral flute tap for steel, match the thread size (e.g., M16x2) and pitch to your application. Choose a tolerance class like D5 / 4H-6H for precision. For blind holes, a spiral flute design with a modified bottoming chamfer ensures chip evacuation and full thread depth.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
This OSG spiral-flute tap is designed for threading blind holes in steel and stainless steel. With a M16x2 metric thread, 3-flute design, and modified bottoming chamfer, it lifts chips upward to prevent clogging in deep or blind-hole applications. Tolerance class D7 / 4H-6H ensures precise thread fit
OSG
This OSG spiral-flute tap is designed for threading blind holes in steel and stainless steel. With a M16x2 metric thread, 3-flute design, and modified bottoming chamfer, it lifts chips upward to prevent clogging in deep or blind-hole applications. Tolerance class D7 / 4H-6H ensures precise thread fit
OSG Spiral Flute Tap: M14x2 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1645514205)
OSG
OSG Spiral Flute Tap: M14x2 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1645514205)
OSG Spiral Flute Tap: M10x1.5 Metric, D4 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1645510154)
OSG
OSG Spiral Flute Tap: M10x1.5 Metric, D4 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1645510154)
Spiral-flute tap for threading blind holes in steel and stainless steel. M16x2 metric thread, 3 flutes, D7 / 4H-6H tolerance class, modified bottoming chamfer. Chip-lifting flute design prevents clogging in deep-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. M16x2 metric thread, 3 flutes, D7 / 4H-6H tolerance class, modified bottoming chamfer. Chip-lifting flute design prevents clogging in deep-hole applications
OSG Spiral Flute Tap: M16x1.5 Metric, D6 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1746101)
OSG
OSG Spiral Flute Tap: M16x1.5 Metric, D6 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1746101)
Metric M18x2.5 spiral-flute tap with 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
OSG
Metric M18x2.5 spiral-flute tap with 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

More from OSG

View all OSG parts
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a 3-flute design with modified bottoming chamfer and H3 / 2B-3B thread limit. Lifts chips upward to prevent clogging in deep or blind holes. Suitable for general manufacturing applications requiring precise internal threads
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a 3-flute design with modified bottoming chamfer and H3 / 2B-3B thread limit. Lifts chips upward to prevent clogging in deep or blind holes. Suitable for general manufacturing applications requiring precise internal threads
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a #4-40 UNC thread size, H5 tolerance, 2B class fit, 2 flutes, and a modified bottoming chamfer for threading close to the hole bottom. The spiral flute design lifts chips upward, preventing clogging in deep or blind holes
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a #4-40 UNC thread size, H5 tolerance, 2B class fit, 2 flutes, and a modified bottoming chamfer for threading close to the hole bottom. The spiral flute design lifts chips upward, preventing clogging in deep or blind holes
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 4 flutes and a modified bottoming chamfer for threading close to the hole bottom. Tolerance class H4 / 2B-3B. Thread size 7/8"-14 UNF
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 4 flutes and a modified bottoming chamfer for threading close to the hole bottom. Tolerance class H4 / 2B-3B. Thread size 7/8"-14 UNF
OSG Spiral Flute Tap: M5x0.8 Metric, D4 / 4H, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650010608)
OSG
OSG Spiral Flute Tap: M5x0.8 Metric, D4 / 4H, 3 Flute, Bottoming Chamfer, V Coated Powdered Metal (MPN 1650010608)
OSG Spiral Flute Tap: M9x0.75 Metric, D4 / 4H-6H, 3 Flute, Bottoming Chamfer (MPN 1650011608)
OSG
OSG Spiral Flute Tap: M9x0.75 Metric, D4 / 4H-6H, 3 Flute, Bottoming Chamfer (MPN 1650011608)
OSG Spiral Flute Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1650001008)
OSG
OSG Spiral Flute Tap: M8x1.25 Metric, D5 / 4H-6H, 3 Flute, Modified Bottoming Chamfer (MPN 1650001008)
This OSG spiral-flute tap features a D4 / 4H-6H tolerance class, 3 flutes, and a modified 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 threading close to the hole bottom
OSG
This OSG spiral-flute tap features a D4 / 4H-6H tolerance class, 3 flutes, and a modified 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 threading close to the hole bottom
Spiral-flute tap designed for threading blind holes in steel and stainless steel. The spiral flute geometry evacuates chips upward to prevent clogging. Features a modified bottoming chamfer for threading close to the hole bottom. Thread size: 1/2"-28 UNEF, tolerance H4 / 2B-3B, 3 flutes
OSG
Spiral-flute tap designed for threading blind holes in steel and stainless steel. The spiral flute geometry evacuates chips upward to prevent clogging. Features a modified bottoming chamfer for threading close to the hole bottom. Thread size: 1/2"-28 UNEF, tolerance H4 / 2B-3B, 3 flutes