ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #4, 1-1/4" 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 conforms to NAS 965…
SKU 3G-OTH-192882
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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 conforms to NAS 965 Type B specifications, with an overall length of 1-1/4 inches (MPN 953HS4SS).
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 a threaded shank is required for secure tool holding. The #4 size with 0.2090-inch diameter and 1/4"-28 thread meets NAS 965 Type B specs, making it suitable for high-tolerance metal drilling.
What are the specifications of the ROCKY MOUNTAIN TWIST 953HS4SS drill bit?
The ROCKY MOUNTAIN TWIST 953HS4SS is a #4 threaded shank drill bit with a 0.2090-inch diameter, 1/4"-28 thread size, and 1-1/4" overall length. It is made from black oxide high-speed steel and conforms to 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 like the 953HS4SS to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this NAS 965 Type B bit.
How to select the correct threaded shank drill bit for aerospace work?
Select a bit that matches your required hole diameter and thread size, such as the ROCKY MOUNTAIN TWIST #4 with 0.2090-inch diameter and 1/4"-28 thread. Ensure it meets NAS 965 Type B specs for aerospace use. The black oxide HSS finish provides wear resistance and chip evacuation.
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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.















