ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #20, 9/16" 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-195585
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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 9/16".
Frequently Asked Questions
What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #20 used for?
This cobalt threaded-shank drill bit is used for precision drilling in aerospace and industrial applications where a #20 hole size (0.1610") is required. The 1/4"-28 threaded shank allows secure mounting in tool holders, and the black oxide cobalt construction provides heat resistance and extended tool life.
What are the specifications of the ROCKY MOUNTAIN TWIST 953CO20ST drill bit?
The ROCKY MOUNTAIN TWIST 953CO20ST is a #20 cobalt threaded-shank drill bit with a 0.1610" diameter, 1/4"-28 thread size, and 9/16" overall length. It has a black oxide finish and meets NAS 965 Type D specifications, making it suitable for demanding drilling tasks.
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 solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to source the 953CO20ST or other cobalt drill bits for your operations.
How to select the correct ROCKY MOUNTAIN TWIST threaded shank drill bit?
Select based on required hole diameter (e.g., #20 = 0.1610"), thread size (1/4"-28), and material compatibility. Cobalt black oxide bits suit harder materials. Ensure the shank matches your tool holder. For NAS 965 Type D compliance, verify the bit meets aerospace standards. 3G Electric can help match your application.
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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.















