OSG Extension Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Plug Chamfer
The OSG Extension Tap (5/16"-18 UNC, MPN 1293501) is a spiral-point extension tap with an H3 / 2B-3B tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric sources this…
SKU 3G-OTH-313665
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The OSG Extension Tap (5/16"-18 UNC, MPN 1293501) is a spiral-point extension tap with an H3 / 2B-3B tolerance, 3-flute design, plug chamfer, and black oxide high-speed steel construction. 3G Electric sources this genuine OSG tool for your threading applications.
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 Extension Tap 1293501 used for?
The OSG Extension Tap 1293501 is used for threading blind or through holes in hard-to-reach areas, such as deep bores or recessed surfaces. Its extended length allows access where standard taps cannot reach. Common applications include automotive, aerospace, and general machining of steel and alloys.
What are the specifications of the OSG Extension Tap 5/16"-18 UNC?
This OSG extension tap has a 5/16"-18 UNC thread size, H3 / 2B-3B tolerance, 3-flute design, and plug chamfer. It is made from black oxide high-speed steel (HSS) for wear resistance. The manufacturer part number is 1293501. It is designed for threading ferrous materials in extended-reach applications.
Where to buy the OSG Extension Tap 1293501 worldwide?
You can source the OSG Extension Tap 1293501 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time. We supply genuine OSG tooling for industrial threading needs.
How to select the correct OSG extension tap for a job?
To select the correct OSG extension tap, match the thread size (e.g., 5/16"-18 UNC), tolerance class (H3 / 2B-3B), and chamfer type (plug) to your hole requirements. Consider material hardness and tap coating—black oxide HSS suits general steel. Ensure the tap's reach length clears obstructions. Consult OSG's technical data for feed and speed recommendations.
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3G Electric supplies OSG spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
