ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #29, 2-1/8" Overall Lg
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #29 is a high-speed steel threaded-shank drill bit with a 0.1360-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B…
SKU 3G-OTH-192813
Need installation or engineering help?
Ask a question
Product Description
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #29 is a high-speed steel threaded-shank drill bit with a 0.1360-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 953HS29LS).
Frequently Asked Questions
What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #29 used for?
This drill bit is used for precision drilling in aerospace and industrial applications where a threaded shank provides secure retention in tool holders. It meets NAS 965 Type B specifications, making it suitable for high-tolerance metal drilling tasks.
What are the specifications of the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #29?
The bit has a 0.1360-inch diameter (#29), a 1/4"-28 threaded shank, and an overall length of 2-1/8 inches. It is made from black oxide high-speed steel (HSS) and conforms to NAS 965 Type B standards. The manufacturer part number is 953HS29LS.
Where to buy the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #29 worldwide?
3G Electric supplies this ROCKY MOUNTAIN TWIST drill bit worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct threaded shank drill bit for aerospace work?
Ensure the thread size (e.g., 1/4"-28) matches your tool holder, and the diameter (e.g., #29 / 0.1360") fits the hole requirement. Verify compliance with standards like NAS 965 Type B for aerospace applications. 3G Electric can help source the right ROCKY MOUNTAIN TWIST bit.
Used in
Common applications for ROCKY MOUNTAIN TWISTROCKY MOUNTAIN TWIST Products
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.















