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OSG 0138501 Spiral-Flute Tap - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 0138501 Spiral-Flute Tap

OSG Spiral-Flute Taps for Steel & Stainless Steel.

SKU 3G-OTH-218540

Brand
OSG
Item
0138501 Spiral-Flute Tap
Category
Spiral-Flute Taps for Steel & Stainless Steel
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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
0138501

Technical Documents

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

Product Description

OSG Spiral-Flute Taps for Steel & Stainless Steel.

Frequently Asked Questions

What is the OSG Spiral Flute Tap 0138501 used for?

The OSG Spiral Flute Tap 0138501 is designed for threading steel and stainless steel. Its spiral flute design efficiently evacuates chips upward, making it ideal for blind-hole threading applications in industrial manufacturing and maintenance.

What are the specifications of the OSG Spiral Flute Tap 0138501?

This OSG tap has a thread size of 7/16"-20 UNF, with an H5 tolerance class for 2B-3B fit. It features 3 flutes and a bottoming chamfer, making it suitable for threading to the bottom of blind holes in steel and stainless steel.

Where to buy the OSG Spiral Flute Tap 0138501 worldwide?

You can source the OSG Spiral Flute Tap 0138501 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your operations.

How to select the correct OSG tap for steel threading?

For steel threading, choose a tap with appropriate flute design and chamfer type. The OSG spiral flute tap with bottoming chamfer is ideal for blind holes. Match thread size (7/16"-20 UNF) and tolerance class (H5) to your application requirements for optimal 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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Cross-referenced by specification & description
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a 3-flute design with bottoming chamfer for efficient chip evacuation upward. Thread size 1/2"-20 UNF, tolerance class H5 for 2B-3B fit. Manufacturer part number 0138901
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a 3-flute design with bottoming chamfer for efficient chip evacuation upward. Thread size 1/2"-20 UNF, tolerance class H5 for 2B-3B fit. Manufacturer part number 0138901
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes and a bottoming chamfer for threading to the bottom of blind holes. Thread size: 7/16"-20 UNF, tolerance class H3 / 2B-3B. Chip evacuation upward prevents clogging
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes and a bottoming chamfer for threading to the bottom of blind holes. Thread size: 7/16"-20 UNF, tolerance class H3 / 2B-3B. Chip evacuation upward prevents clogging
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a 5/16"-18 UNC thread size, H5 tolerance class for 2B-3B fit, 3 flutes, and a bottoming chamfer to thread to the bottom of blind holes. The spiral flute design lifts chips upward, preventing clogging in deep or blind holes
OSG spiral-flute tap designed for threading blind holes in steel and stainless steel. Features a 3/8"-16 UNC thread size, H5 tolerance for 2B-3B fit classes, 3 flutes, and a bottoming chamfer. The spiral flute design facilitates upward chip evacuation, making it suitable for deep-hole tapping applications
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OSG spiral-flute tap designed for threading blind holes in steel and stainless steel. Features a 3/8"-16 UNC thread size, H5 tolerance for 2B-3B fit classes, 3 flutes, and a bottoming chamfer. The spiral flute design facilitates upward chip evacuation, making it suitable for deep-hole tapping applications
OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138301)
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OSG Spiral Flute Tap: 7/16"-14 UNC, H3 / 2B-3B, 3 Flute, Bottoming Chamfer (MPN 0138301)
Spiral-flute tap for threading blind holes in steel and stainless steel. The spiral design pushes chips upward to prevent clogging. Features a bottoming chamfer for threading close to the bottom of a hole. Tolerance class H3 / 2B-3B ensures precise thread fit
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Spiral-flute tap for threading blind holes in steel and stainless steel. The spiral design pushes chips upward to prevent clogging. Features a bottoming chamfer for threading close to the bottom of a hole. Tolerance class H3 / 2B-3B ensures precise thread fit

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Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H4 / 2B-3B tolerance, and modified bottoming chamfer. Chip evacuation is upward, preventing clogging. Suitable for high-precision threading applications
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features H5 / 2B-3B tolerance, modified bottoming chamfer, and 3 flutes for efficient chip evacuation upward
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features H5 / 2B-3B tolerance, modified bottoming chamfer, and 3 flutes for efficient chip evacuation upward
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Spiral-flute tap with 3 flutes and modified bottoming chamfer, designed for threading blind holes in steel and stainless steel. H3 / 2B-3B tolerance ensures precise fit. Suitable for CNC and manual tapping applications requiring efficient chip evacuation
Spiral-flute tap for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging. Features a bottoming chamfer for threading to the bottom of blind holes. Tolerance class H4 / 2B-3B
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Spiral-flute tap for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging. Features a bottoming chamfer for threading to the bottom of blind holes. Tolerance class H4 / 2B-3B
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