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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-195539

Also listed as: 953 COCSS · 953-COCSS

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit
Category
Cobalt Threaded-Shank Drill Bits
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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
953COCSS
Type
Black Oxide Cobalt
Overall Lg
1-1/4"

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. The overall length is 1-1/4 inches, and the manufacturer part number is 953COCSS.

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 hard metals 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 compliance is required.

What are the specifications of the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit?

The bit has a 0.2420-inch diameter (Letter C), a 1/4"-28 threaded shank, and an overall length of 1-1/4 inches. It features a black oxide cobalt finish and meets NAS 965 Type D specifications. The manufacturer part number is 953COCSS.

Where to buy the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit worldwide?

3G Electric supplies the ROCKY MOUNTAIN TWIST 953COCSS drill bit to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact our team to place an order or request a quote for this NAS 965 Type D compliant tool.

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

Match the bit diameter (0.2420 inch for Letter C) to your hole size requirement. Ensure your tool holder accepts a 1/4"-28 threaded shank. For hard materials, the black oxide cobalt construction from ROCKY MOUNTAIN TWIST provides heat resistance and durability. Verify NAS 965 Type D compliance if required by your application.

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
Cobalt threaded-shank drill bit with a black oxide finish. Features a Letter C size (0.2420" diameter) and 1/4"-28 threaded shank for secure tool holding. Overall length of 9/16". Suitable for precision drilling in applications requiring a threaded shank
ROCKY MOUNTAIN TWIST
Cobalt threaded-shank drill bit with a black oxide finish. Features a Letter C size (0.2420" diameter) and 1/4"-28 threaded shank for secure tool holding. Overall length of 9/16". Suitable for precision drilling in applications requiring a threaded shank
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)
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", 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO5/16SS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO5/16SS)
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)

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