ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #4, 2-1/8" Overall Lg
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #4 is a high-speed steel threaded-shank drill bit with a 0.2090-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B…
SKU 3G-OTH-192869
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Product Description
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #4 is a high-speed steel threaded-shank drill bit with a 0.2090-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 2-1/8 inches (MPN 953HS4LS).
Frequently Asked Questions
What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #4 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 metalworking tasks that demand secure bit holding and consistent hole diameters.
What are the specifications of the ROCKY MOUNTAIN TWIST 953HS4LS drill bit?
The ROCKY MOUNTAIN TWIST 953HS4LS is a #4 high-speed steel threaded shank drill bit with a 0.2090-inch diameter, 1/4"-28 thread size, and 2-1/8" overall length. It features a black oxide finish and complies with NAS 965 Type B standards for aerospace-grade drilling.
Where to buy ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide?
3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 953HS4LS or other sizes.
How to select the correct ROCKY MOUNTAIN TWIST threaded shank drill bit?
Select based on thread size (e.g., 1/4"-28), diameter (0.2090 inch for #4), and overall length (2-1/8"). Ensure the bit meets NAS 965 Type B for aerospace work. The black oxide HSS construction suits ferrous metals. Match the shank thread to your toolholder for secure operation.
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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.















