OSG Spiral Point Tap: #12-28 UNF, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Spiral Point Tap (#12-28 UNF, MPN 1101516105) is a TiN-coated cobalt tap with a plug chamfer, 3 flutes, and H3 / 2B-3B tolerance class, designed for threading in aerospace materials. 3G Electric sources this…
SKU 3G-OTH-231949
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Product Description
The OSG Spiral Point Tap (#12-28 UNF, MPN 1101516105) is a TiN-coated cobalt tap with a plug chamfer, 3 flutes, and H3 / 2B-3B tolerance class, designed for threading in aerospace materials. 3G Electric sources this specialist tool as part of our broad industrial supply across 14 departments, with deep expertise in combustion, pumps, and controls ensuring accurate sourcing and support.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the OSG Spiral Point Tap #12-28 UNF used for?
This OSG spiral point tap is designed for threading aerospace materials. Its TiN-coated cobalt construction and plug chamfer make it suitable for through-hole tapping in high-strength alloys, delivering precise #12-28 UNF threads with H3 tolerance for 2B-3B class fit.
What are the specifications of the OSG Spiral Point Tap 1101516105?
The OSG tap has a #12-28 UNF thread size, H3 / 2B-3B tolerance, 3-flute design, plug chamfer, and TiN-coated cobalt material. It is a spiral-point tap optimized for aerospace materials, with manufacturer part number 1101516105.
Where to buy OSG taps in worldwide?
3G Electric supplies OSG taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the OSG Spiral Point Tap #12-28 UNF (MPN 1101516105) for your aerospace threading needs.
How to select the right OSG tap for aerospace materials?
For aerospace materials, choose a tap with TiN coating for wear resistance and a plug chamfer for through-hole threading. The OSG spiral point tap with H3 tolerance ensures proper thread fit. Match thread size (e.g., #12-28 UNF) and flute count to your application for optimal chip evacuation.
Used in
Common applications for OSGOSG Products
3G Electric supplies OSG spiral-point taps for aerospace materials. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















