We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/8", 2-1/8" Overall Lg - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/8", 2-1/8" Overall Lg

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/8" is a cobalt threaded-shank drill bit with a 0.3750" diameter and a 1/4"-28 thread size. It has a 2-1/8" overall length, features a black oxide finish, and meets…

SKU 3G-OTH-196532

Also listed as: 953CO38LS · 953CO3 8LS · 953CO3-8LS

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit: 3/8", 2-1/8" Overall Lg
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 — 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
953CO3/8LS
Type
Black Oxide Cobalt
Overall Lg
2-1/8"

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: 3/8" is a cobalt threaded-shank drill bit with a 0.3750" diameter and a 1/4"-28 thread size. It has a 2-1/8" overall length, features a black oxide finish, and meets NAS 965 Type D specifications.

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 drill bit is designed for drilling precision holes in hardened materials such as stainless steel and titanium. The threaded shank (1/4"-28) allows secure mounting in tool holders for aerospace and industrial machining applications where NAS 965 Type D specifications are required.

What are the specifications of the ROCKY MOUNTAIN TWIST 953CO3/8LS drill bit?

The ROCKY MOUNTAIN TWIST 953CO3/8LS has a 0.3750" diameter, 2-1/8" overall length, 1/4"-28 threaded shank, black oxide cobalt finish, and meets NAS 965 Type D standards. It is a cobalt threaded-shank drill bit suitable for high-strength alloy drilling.

Where to buy ROCKY MOUNTAIN TWIST drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST 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 953CO3/8LS or other threaded-shank drill bits.

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

Select based on thread size (1/4"-28 for this bit), diameter (0.3750"), and material compatibility. Cobalt black oxide bits suit hardened steels. Ensure the shank matches your tool holder's thread. For NAS 965 Type D compliance, verify the bit meets aerospace drilling standards.

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: 3/8", 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO3/8SS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/8", 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO3/8SS)
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)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/32", 1" Overall Lg, Black Oxide Cobalt (MPN 953CO3/32SS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/32", 1" Overall Lg, Black Oxide Cobalt (MPN 953CO3/32SS)
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
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/16", 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO3/16VS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/16", 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO3/16VS)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/32", 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO3/32VS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/32", 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO3/32VS)

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