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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C is a cobalt threaded-shank drill bit with a 0.2420-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type D…

SKU 3G-OTH-195538

Also listed as: 953 COCST · 953-COCST

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit
Category
Cobalt Threaded-Shank Drill Bits
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

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

Technical Documents

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

Product Description

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C is a cobalt threaded-shank drill bit with a 0.2420-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type D specifications, with an overall length of 9/16 inch (MPN 953COCST).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

This cobalt threaded-shank drill bit is designed for precision drilling in aerospace and industrial applications where a threaded shank is required for secure tool holding. It meets NAS 965 Type D specifications, making it suitable for high-strength materials.

What are the specifications of the ROCKY MOUNTAIN TWIST 953COCST drill bit?

The ROCKY MOUNTAIN TWIST 953COCST is a Letter C drill bit with a 0.2420-inch diameter, 1/4"-28 thread size, and 9/16-inch overall length. It has a black oxide cobalt finish and meets NAS 965 Type D standards.

Where to buy ROCKY MOUNTAIN TWIST drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the 953COCST or other models.

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

Select based on required hole diameter (e.g., Letter C at 0.2420 inches), thread size (1/4"-28), and material compatibility. Cobalt bits suit harder materials. Ensure the shank matches your tool holder. ROCKY MOUNTAIN TWIST bits meet NAS 965 Type D for aerospace use.

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This cobalt threaded-shank drill bit has a 0.2420-inch diameter (Letter C) and a 1/4-28 thread size. The black oxide finish provides lubricity and wear resistance. Overall length is 1-1/4 inches. Used for drilling precision holes in hard metals such as stainless steel and titanium, with the threaded shank enabling secure mounting in tool holders for industrial machining applications
ROCKY MOUNTAIN TWIST
This cobalt threaded-shank drill bit has a 0.2420-inch diameter (Letter C) and a 1/4-28 thread size. The black oxide finish provides lubricity and wear resistance. Overall length is 1-1/4 inches. Used for drilling precision holes in hard metals such as stainless steel and titanium, with the threaded shank enabling secure mounting in tool holders for industrial machining applications
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953COCLS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953COCLS)
Cobalt threaded-shank drill bit with a 0.2380-inch diameter (Letter B) and 1/4"-28 thread size. Features a black oxide finish and 9/16" overall length. Conforms to NAS 965 Type D specification. Used for precision drilling in hard metals where secure mounting in tool holders is required
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a 0.2380-inch diameter (Letter B) and 1/4"-28 thread size. Features a black oxide finish and 9/16" overall length. Conforms to NAS 965 Type D specification. Used for precision drilling in hard metals where secure mounting in tool holders is required
This cobalt threaded-shank drill bit features a black oxide finish and a 1/4"-28 thread for secure mounting in tool holders. With a Letter B diameter of 0.2380 inches and an overall length of 1-1/4 inches, it is suited for drilling precision holes in hard metals such as stainless steel and titanium in industrial applications. Conforms to NAS 965 Type D
ROCKY MOUNTAIN TWIST
This cobalt threaded-shank drill bit features a black oxide finish and a 1/4"-28 thread for secure mounting in tool holders. With a Letter B diameter of 0.2380 inches and an overall length of 1-1/4 inches, it is suited for drilling precision holes in hard metals such as stainless steel and titanium in industrial applications. Conforms to NAS 965 Type D
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter B, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953COBLS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter B, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953COBLS)
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)

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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
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