ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #20, 13/32" Overall Lg
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #20 is a cobalt threaded-shank drill bit with a 0.1610-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type D…
SKU 3G-OTH-195584
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Product Description
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #20 is a cobalt threaded-shank drill bit with a 0.1610-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type D specifications. The overall length is 13/32".
Frequently Asked Questions
What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #20 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 #20 size (0.1610" diameter) with 1/4"-28 thread and NAS 965 Type D compliance makes it suitable for high-tolerance metalworking, especially in aircraft maintenance and manufacturing.
What are the specifications of the ROCKY MOUNTAIN TWIST 953CO20VS drill bit?
The ROCKY MOUNTAIN TWIST 953CO20VS is a #20 threaded shank drill bit with a 0.1610" diameter, 1/4"-28 thread size, and 13/32" overall length. It is made of black oxide cobalt and meets NAS 965 Type D specifications. The black oxide finish provides wear resistance and lubricity for extended tool life.
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 953CO20VS or other sizes.
How to select the correct ROCKY MOUNTAIN TWIST threaded shank drill bit?
Select based on hole diameter, thread size, and material. For the 953CO20VS, the #20 drill (0.1610") with 1/4"-28 thread is designed for NAS 965 Type D applications. Ensure your tool holder matches the 1/4"-28 threaded shank. Cobalt construction suits hard metals; black oxide aids chip flow. Verify overall length fits your setup.
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3G Electric supplies ROCKY MOUNTAIN TWIST cobalt threaded-shank drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















