Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

ROCKY MOUNTAIN TWIST 953CO9/64ST Cobalt Threaded-Shank Drill Bit - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST 953CO9/64ST Cobalt Threaded-Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 9/64" is a cobalt threaded-shank drill bit with a 1/4"-28 thread size and a 9/16" overall length. It features a black oxide finish and meets NAS 965 Type D…

SKU 3G-OTH-196478

Also listed as: 953CO964ST · 953CO9 64ST · 953CO9-64ST

Brand
ROCKY MOUNTAIN TWIST
Item
953CO9/64ST Cobalt Threaded-Shank Drill Bit
Category
Cobalt Threaded-Shank Drill Bits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953CO9/64ST
Type
Black Oxide Cobalt
Overall Lg
9/16"

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

ROCKY MOUNTAIN TWIST Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 9/64" is a cobalt threaded-shank drill bit with a 1/4"-28 thread size and a 9/16" overall length. It features a black oxide finish and meets NAS 965 Type D specifications. The drill bit has a diameter of 0.1406 inches.

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit 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. The cobalt construction and black oxide finish suit high-strength materials, and the NAS 965 Type D specification indicates compliance with aerospace standards.

What are the specifications of the ROCKY MOUNTAIN TWIST 953CO9/64ST drill bit?

The ROCKY MOUNTAIN TWIST 953CO9/64ST is a 9/64" diameter (0.1406") threaded shank drill bit with a 1/4"-28 thread size and 9/16" overall length. It features a black oxide cobalt finish and meets NAS 965 Type D specifications. The manufacturer part number is 953CO9/64ST.

Where to buy ROCKY MOUNTAIN TWIST 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 953CO9/64ST or other sizes for your operations.

How to select the correct ROCKY MOUNTAIN TWIST threaded shank drill bit?

Select based on required hole diameter (e.g., 9/64"), thread size (1/4"-28), and overall length (9/16"). Ensure the shank matches your tool holder. For aerospace work, verify NAS 965 Type D compliance. Cobalt bits suit harder materials. 3G Electric can help match your application needs.

Used in

Common applications for ROCKY MOUNTAIN TWIST
Aerospace assembly — Rocky Mountain Twist NAS 965 Type D cobalt drill bits for drilling titanium airframe components
Automotive production line — Rocky Mountain Twist HSS threaded-shank drill bits for quick-change drilling in aluminum engine blocks
Heavy equipment maintenance — Rocky Mountain Twist cobalt drill bits for drilling hardened steel in field repair kits
Precision machining — Rocky Mountain Twist HSS drill bits in wire gauge sizes for jig and fixture drilling
Portable drilling operations — Rocky Mountain Twist threaded-shank drill bits for use with magnetic drill stands in structural steel fabrication

ROCKY 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 9/64", 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO9/64LS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 9/64", 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO9/64LS)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 11/64", 9/16" Overall Lg, Black Oxide Cobalt (MPN 953CO11/64ST)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 11/64", 9/16" Overall Lg, Black Oxide Cobalt (MPN 953CO11/64ST)
This 9/64" (0.1406 inch) diameter cobalt threaded-shank drill bit features a black oxide finish and a 1/4"-28 thread size. With an overall length of 1-1/4", it is designed for precision drilling in applications requiring secure shank retention, such as aerospace and industrial machining. Meets NAS 965 Type D specifications
ROCKY MOUNTAIN TWIST
This 9/64" (0.1406 inch) diameter cobalt threaded-shank drill bit features a black oxide finish and a 1/4"-28 thread size. With an overall length of 1-1/4", it is designed for precision drilling in applications requiring secure shank retention, such as aerospace and industrial machining. Meets NAS 965 Type D specifications
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 1/8", 9/16" Overall Lg, Black Oxide Cobalt (MPN 953CO1/8ST)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 1/8", 9/16" Overall Lg, Black Oxide Cobalt (MPN 953CO1/8ST)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 13/64", 5/8" Overall Lg, Black Oxide Cobalt (MPN 953CO13/64ST)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 13/64", 5/8" Overall Lg, Black Oxide Cobalt (MPN 953CO13/64ST)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 15/64", 5/8" Overall Lg, Black Oxide Cobalt (MPN 953CO15/64ST)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 15/64", 5/8" Overall Lg, Black Oxide Cobalt (MPN 953CO15/64ST)

More from ROCKY MOUNTAIN TWIST

View all ROCKY MOUNTAIN TWIST parts
Cobalt threaded-shank drill bit with a #10 diameter (0.1935") and 1/4"-28 thread size. Overall length is 2-1/8". Black oxide finish. Meets NAS 965 Type D specifications. Used for precision drilling in metalworking applications requiring secure tool holding
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a #10 diameter (0.1935") and 1/4"-28 thread size. Overall length is 2-1/8". Black oxide finish. Meets NAS 965 Type D specifications. Used for precision drilling in metalworking applications requiring secure tool holding
Cobalt threaded-shank drill bit with 0.1250" diameter and 1/4"-28 thread size. Black oxide finish. Overall length 1-1/4". Meets NAS 965 Type D specifications. Used for drilling precision holes in hard metals and aerospace alloys in industrial machining and maintenance applications
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with 0.1250" diameter and 1/4"-28 thread size. Black oxide finish. Overall length 1-1/4". Meets NAS 965 Type D specifications. Used for drilling precision holes in hard metals and aerospace alloys in industrial machining and maintenance applications
Cobalt threaded-shank drill bit with #30 diameter (0.1285") and 1/4"-28 thread. Black oxide finish. Overall length 9/16". Conforms to NAS 965 Type D. Used for precision drilling in high-strength materials where secure threaded shank mounting is required
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with #30 diameter (0.1285") and 1/4"-28 thread. Black oxide finish. Overall length 9/16". Conforms to NAS 965 Type D. Used for precision drilling in high-strength materials where secure threaded shank mounting is required
Cobalt threaded-shank drill bit with 0.2188" diameter and 1/4-28 thread size. Black oxide finish, 2-1/8" overall length. Meets NAS 965 Type D specification. Used for drilling precision holes in hardened metals and aerospace alloys, suitable for CNC machining and maintenance applications
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with 0.2188" diameter and 1/4-28 thread size. Black oxide finish, 2-1/8" overall length. Meets NAS 965 Type D specification. Used for drilling precision holes in hardened metals and aerospace alloys, suitable for CNC machining and maintenance applications
This #30 cobalt drill bit has a 0.1285-inch diameter and a 1/4"-28 threaded shank for secure mounting in tool holders. The black oxide finish and NAS 965 Type D compliance suit it for drilling precision holes in hard metals and aerospace alloys in industrial machining and metal fabrication applications
ROCKY MOUNTAIN TWIST
This #30 cobalt drill bit has a 0.1285-inch diameter and a 1/4"-28 threaded shank for secure mounting in tool holders. The black oxide finish and NAS 965 Type D compliance suit it for drilling precision holes in hard metals and aerospace alloys in industrial machining and metal fabrication applications
Cobalt threaded-shank drill bit with a #24 wire gauge diameter of 0.1520 inches and a 1/4"-28 thread size. Overall length is 2-1/8". Black oxide cobalt construction. Meets NAS 965 Type D specifications. Used for drilling precision holes in hardened metals and aerospace alloys in CNC machining and industrial fabrication
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a #24 wire gauge diameter of 0.1520 inches and a 1/4"-28 thread size. Overall length is 2-1/8". Black oxide cobalt construction. Meets NAS 965 Type D specifications. Used for drilling precision holes in hardened metals and aerospace alloys in CNC machining and industrial fabrication
Cobalt threaded-shank drill bit with a #35 wire gauge diameter (0.1100 inches) and 1/4-28 thread size. Black oxide finish provides surface hardness and lubricity. Overall length of 1/2 inch. Conforms to NAS 965 Type D. Used for precision drilling in tool holders requiring threaded shank retention
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a #35 wire gauge diameter (0.1100 inches) and 1/4-28 thread size. Black oxide finish provides surface hardness and lubricity. Overall length of 1/2 inch. Conforms to NAS 965 Type D. Used for precision drilling in tool holders requiring threaded shank retention
Cobalt threaded-shank drill bit with 0.2570-inch diameter, 1/4"-28 thread size, and 1-1/4" overall length. Black oxide finish. Meets NAS 965 Type D specifications. Used for precision drilling in applications requiring secure tool holding via threaded shank
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with 0.2570-inch diameter, 1/4"-28 thread size, and 1-1/4" overall length. Black oxide finish. Meets NAS 965 Type D specifications. Used for precision drilling in applications requiring secure tool holding via threaded shank