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 3/16" Cobalt Threaded-Shank Drill Bit - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST 3/16" Cobalt Threaded-Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/16" is a cobalt threaded-shank drill bit with a 0.1875-inch diameter and a 1/4"-28 thread size. It features a black oxide cobalt finish and meets NAS 965 Type D…

SKU 3G-OTH-196497

Also listed as: 953CO316ST · 953CO3 16ST · 953CO3-16ST

Brand
ROCKY MOUNTAIN TWIST
Item
3/16" 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
953CO3/16ST
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: 3/16" is a cobalt threaded-shank drill bit with a 0.1875-inch diameter and a 1/4"-28 thread size. It features a black oxide cobalt finish and meets NAS 965 Type D specifications, with a 9/16" overall length. This product is identified by manufacturer part number 953CO3/16ST.

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit used for?

This drill bit is designed for precision drilling in aerospace and industrial applications where threaded shank retention is required. The 1/4"-28 thread and NAS 965 Type D compliance make it suitable for use in high-vibration environments, such as aircraft assembly and metal fabrication.

What are the specifications of the ROCKY MOUNTAIN TWIST 3/16" drill bit?

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit has a 0.1875-inch diameter, 9/16" overall length, and a 1/4"-28 thread size. It features a black oxide cobalt finish and meets NAS 965 Type D specifications. The manufacturer part number is 953CO3/16ST.

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, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the 953CO3/16ST model.

How to select the correct threaded shank drill bit for aerospace work?

Select a bit with the correct thread size (e.g., 1/4"-28) and diameter (e.g., 0.1875") for your tool holder. Ensure it meets NAS 965 Type D for aerospace standards. The ROCKY MOUNTAIN TWIST black oxide cobalt finish provides heat resistance and durability for repeated use in metal drilling.

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
This 3/16" diameter cobalt drill bit features a 1/4"-28 threaded shank for secure mounting in compatible drilling systems. The black oxide finish provides improved lubricity and heat resistance. With an overall length of 13/32", it meets NAS 965 Type D specifications for precision drilling in aerospace and industrial applications
ROCKY MOUNTAIN TWIST
This 3/16" diameter cobalt drill bit features a 1/4"-28 threaded shank for secure mounting in compatible drilling systems. The black oxide finish provides improved lubricity and heat resistance. With an overall length of 13/32", it meets NAS 965 Type D specifications for precision drilling in aerospace and industrial applications
Cobalt drill bit with a 1/4-28 threaded shank for secure retention in tool holders. 3/16" diameter, 2-1/8" overall length, black oxide finish. Meets NAS 965 Type D specifications. Suitable for precision holemaking in hardened materials
ROCKY MOUNTAIN TWIST
Cobalt drill bit with a 1/4-28 threaded shank for secure retention in tool holders. 3/16" diameter, 2-1/8" overall length, black oxide finish. Meets NAS 965 Type D specifications. Suitable for precision holemaking in hardened materials
This cobalt threaded-shank drill bit has a 5/32" (0.1563") diameter and a 1/4"-28 thread for secure mounting. The black oxide finish provides heat resistance. Overall length is 9/16". Suitable for precision drilling in aerospace and industrial applications requiring a threaded shank
ROCKY MOUNTAIN TWIST
This cobalt threaded-shank drill bit has a 5/32" (0.1563") diameter and a 1/4"-28 thread for secure mounting. The black oxide finish provides heat resistance. Overall length is 9/16". Suitable for precision drilling in aerospace and industrial applications requiring a threaded shank
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/16", 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO3/16SS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/16", 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO3/16SS)
This cobalt threaded-shank drill bit has a 3/8" diameter with a 1/4"-28 thread for secure mounting in tool holders. It features a black oxide finish and an overall length of 5/8". Designed for precision drilling in machining applications, it is suitable for use with tough materials
ROCKY MOUNTAIN TWIST
This cobalt threaded-shank drill bit has a 3/8" diameter with a 1/4"-28 thread for secure mounting in tool holders. It features a black oxide finish and an overall length of 5/8". Designed for precision drilling in machining applications, it is suitable for use with tough materials
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO5/16LS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO5/16LS)

More from ROCKY MOUNTAIN TWIST

View all ROCKY MOUNTAIN TWIST parts
This #10 cobalt threaded-shank drill bit has a 0.1935-inch diameter and 1/4"-28 thread size. The black oxide finish provides heat resistance. Overall length is 1-1/4". Conforms to NAS 965 Type D. Used for precision drilling in aerospace and industrial applications
ROCKY MOUNTAIN TWIST
This #10 cobalt threaded-shank drill bit has a 0.1935-inch diameter and 1/4"-28 thread size. The black oxide finish provides heat resistance. Overall length is 1-1/4". Conforms to NAS 965 Type D. Used for precision drilling in aerospace and industrial applications
Cobalt threaded-shank drill bit with a #18 diameter of 0.1695 inches and a 1/4"-28 thread size. Features a black oxide finish and conforms to NAS 965 Type D specification. Overall length is 1-1/4 inches. Used for precision drilling in applications requiring a secure threaded shank, such as in aerospace and industrial machining
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a #18 diameter of 0.1695 inches and a 1/4"-28 thread size. Features a black oxide finish and conforms to NAS 965 Type D specification. Overall length is 1-1/4 inches. Used for precision drilling in applications requiring a secure threaded shank, such as in aerospace and industrial machining
This 7/32" diameter cobalt drill bit features a threaded shank for secure mounting in tool holders. The black oxide finish provides enhanced lubricity and corrosion resistance. With a 9/16" overall length, it is suited for drilling operations in machining and metalworking applications
ROCKY MOUNTAIN TWIST
This 7/32" diameter cobalt drill bit features a threaded shank for secure mounting in tool holders. The black oxide finish provides enhanced lubricity and corrosion resistance. With a 9/16" overall length, it is suited for drilling operations in machining and metalworking applications
This 3/32" diameter cobalt drill bit features a 1/4"-28 threaded shank for secure retention in tool holders. The black oxide finish reduces friction and enhances wear resistance. With an overall length of 1/2", it is suited for precision drilling in metalworking applications requiring threaded shank compatibility
ROCKY MOUNTAIN TWIST
This 3/32" diameter cobalt drill bit features a 1/4"-28 threaded shank for secure retention in tool holders. The black oxide finish reduces friction and enhances wear resistance. With an overall length of 1/2", it is suited for precision drilling in metalworking applications requiring threaded shank compatibility
Cobalt threaded-shank drill bit with a #1 diameter of 0.2280 inches and a 1/4"-28 thread size. Features a black oxide finish and an overall length of 2-1/8 inches. Designed for precision drilling in metalworking applications requiring secure mounting in tool holders
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a #1 diameter of 0.2280 inches and a 1/4"-28 thread size. Features a black oxide finish and an overall length of 2-1/8 inches. Designed for precision drilling in metalworking applications requiring secure mounting in tool holders
Cobalt threaded-shank drill bit with #20 diameter (0.1610") and 1/4"-28 thread. Black oxide finish. Overall length 9/16". Meets NAS 965 Type D. Used for precision drilling in applications requiring secure mounting in tool holders
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with #20 diameter (0.1610") and 1/4"-28 thread. Black oxide finish. Overall length 9/16". Meets NAS 965 Type D. Used for precision drilling in applications requiring secure mounting in tool holders
Cobalt threaded-shank drill bit with 0.1590-inch diameter and 1/4"-28 thread size. Black oxide finish. Overall length 1-1/4". Conforms to NAS 965 Type D. Used for precision drilling in metal alloys and hardened materials where a secure threaded shank is required
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with 0.1590-inch diameter and 1/4"-28 thread size. Black oxide finish. Overall length 1-1/4". Conforms to NAS 965 Type D. Used for precision drilling in metal alloys and hardened materials where a secure threaded shank is required
Cobalt threaded-shank drill bit with a #23 diameter of 0.1540 inches and a 1/4"-28 thread size. Overall length is 1-1/4 inches. Black oxide finish. Conforms to NAS 965 Type D. Used for precision drilling in applications requiring secure retention in tool holders, such as aerospace and industrial holemaking in hardened materials
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a #23 diameter of 0.1540 inches and a 1/4"-28 thread size. Overall length is 1-1/4 inches. Black oxide finish. Conforms to NAS 965 Type D. Used for precision drilling in applications requiring secure retention in tool holders, such as aerospace and industrial holemaking in hardened materials