ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #28, 1-1/4" Overall Lg
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #28 is a high-speed steel threaded-shank drill bit with a 0.1405-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B…
SKU 3G-OTH-192814
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Product Description
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #28 is a high-speed steel threaded-shank drill bit with a 0.1405-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B specifications, with an overall length of 1-1/4 inches (MPN 953HS28SS).
Frequently Asked Questions
What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #28 used for?
This drill bit is used for precision drilling in aerospace and industrial applications where threaded shank retention is required. It meets NAS 965 Type B specifications, making it suitable for high-tolerance metal drilling tasks that demand secure bit holding and consistent hole sizing.
What are the specifications of the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #28?
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #28 has a 0.1405-inch diameter, 1/4\"-28 thread size, and 1-1/4\" overall length. It is made of black oxide high-speed steel (HSS) and meets NAS 965 Type B standards. The manufacturer part number is 953HS28SS.
Where to buy the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #28 worldwide?
3G Electric supplies the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #28 worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this NAS 965 Type B drill bit.
How to select the correct ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit for your application?
Select based on thread size, diameter, and material compatibility. This #28 bit has a 0.1405-inch diameter with 1/4\"-28 threads, ideal for aerospace-grade fasteners. Ensure your drill chuck accepts threaded shanks and that the black oxide HSS suits the workpiece hardness. 3G Electric can help match specifications to your job.
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3G Electric supplies ROCKY MOUNTAIN TWIST high-speed steel threaded-shank drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















