ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #13, 2-1/8" Overall Lg
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #13 is a cobalt threaded-shank drill bit with a 0.1850-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type D, with…
SKU 3G-OTH-195611
Need installation or engineering help?
Ask a question
Product Description
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #13 is a cobalt threaded-shank drill bit with a 0.1850-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type D, with an overall length of 2-1/8 inches (MPN 953CO13LS).
Frequently Asked Questions
What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #13 used for?
This cobalt drill bit is designed for drilling precision holes in hardened materials, such as aerospace alloys and stainless steel. Its threaded shank (1/4"-28) allows secure mounting in tool holders for high-torque applications, meeting NAS 965 Type D standards for demanding industrial environments.
What are the specifications of the ROCKY MOUNTAIN TWIST 953CO13LS drill bit?
The ROCKY MOUNTAIN TWIST 953CO13LS is a #13 drill bit with a 0.1850-inch diameter, 2-1/8" overall length, and 1/4"-28 threaded shank. It features a black oxide cobalt finish and conforms to NAS 965 Type D. The manufacturer part number is 953CO13LS.
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 to source the 953CO13LS or other NAS 965 Type D bits.
How to select the correct ROCKY MOUNTAIN TWIST threaded shank drill bit?
Select based on hole diameter (e.g., #13 = 0.1850"), thread size (1/4"-28), and material compatibility. For hardened steels, choose black oxide cobalt bits like the 953CO13LS. Ensure the shank matches your tool holder and that the bit meets NAS 965 Type D for aerospace-grade precision.
Used in
Common applications for ROCKY MOUNTAIN TWISTROCKY MOUNTAIN TWIST Products
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.















