OSG Straight Flute Tap: 7/8"-9 UNC, H4 / 2B-3B, 4 Flute, Plug Chamfer
The OSG Straight Flute Tap (7/8"-9 UNC) is a General Purpose Hand Tap with a TiN Coated High Speed Steel construction, featuring an H4 / 2B-3B tolerance, 4 flutes, and a Plug Chamfer (MPN 1135505). 3G Electric…
SKU 3G-OTH-221635
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Product Description
The OSG Straight Flute Tap (7/8"-9 UNC) is a General Purpose Hand Tap with a TiN Coated High Speed Steel construction, featuring an H4 / 2B-3B tolerance, 4 flutes, and a Plug Chamfer (MPN 1135505). 3G Electric sources this genuine OSG threading tool across 14 industrial departments, with specialist expertise in combustion, pumps, and controls ensuring accurate specification and support.
Frequently Asked Questions
What is the OSG Straight Flute Tap 1135505 used for?
The OSG Straight Flute Tap 1135505 is a general-purpose hand tap designed for threading through holes in a wide range of materials. Its TiN coating reduces friction and extends tool life, making it suitable for maintenance, repair, and production environments where reliable UNC threads are required.
What are the specifications of the OSG Straight Flute Tap 1135505?
This OSG tap has a thread size of 7/8"-9 UNC, with an H4 tolerance for 2B-3B class fit. It features 4 flutes, a plug chamfer, and a TiN-coated high-speed steel construction. The manufacturer part number is 1135505, and the SKU is 54LL03.
Where to buy the OSG Straight Flute Tap 1135505 worldwide?
You can source the OSG Straight Flute Tap 1135505 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct threading tool for your application.
How to select the correct OSG tap for UNC threads?
To select the correct OSG tap, match the thread size (e.g., 7/8"-9 UNC) and class fit (2B-3B) to your workpiece requirements. The H4 tolerance indicates a slightly oversized tap for tighter internal threads. For through holes, a plug chamfer like this OSG model is standard. Always verify material compatibility with the TiN coating.
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3G Electric supplies OSG general purpose hand taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















