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ROCKY MOUNTAIN TWIST #20 Cobalt Threaded-Shank Drill Bit - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST #20 Cobalt Threaded-Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #20 is a cobalt threaded-shank drill bit with a 0.1610-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type D…

SKU 3G-OTH-195584

Brand
ROCKY MOUNTAIN TWIST
Item
#20 Cobalt Threaded-Shank Drill Bit
Part Number
953CO20VS
Category
Cobalt Threaded-Shank Drill Bits
Available to Order
Also known as:953CO20VSROCKY MOUNTAIN TWIST
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953CO20VS
Type
Black Oxide Cobalt
Overall Lg
13/32"

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

Product Description

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #20 is a cobalt threaded-shank drill bit with a 0.1610-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 13/32".

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #20 used for?

This drill bit is used for precision drilling in aerospace and industrial applications where a threaded shank is required for secure tool holding. The #20 size (0.1610" diameter) with 1/4"-28 thread and NAS 965 Type D compliance makes it suitable for high-tolerance metalworking, especially in aircraft maintenance and manufacturing.

What are the specifications of the ROCKY MOUNTAIN TWIST 953CO20VS drill bit?

The ROCKY MOUNTAIN TWIST 953CO20VS is a #20 threaded shank drill bit with a 0.1610" diameter, 1/4"-28 thread size, and 13/32" overall length. It is made of black oxide cobalt and meets NAS 965 Type D specifications. The black oxide finish provides wear resistance and lubricity for extended tool life.

Where to buy ROCKY MOUNTAIN TWIST threaded shank 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 for availability and lead time on the 953CO20VS or other sizes.

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

Select based on hole diameter, thread size, and material. For the 953CO20VS, the #20 drill (0.1610") with 1/4"-28 thread is designed for NAS 965 Type D applications. Ensure your tool holder matches the 1/4"-28 threaded shank. Cobalt construction suits hard metals; black oxide aids chip flow. Verify overall length fits your setup.

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
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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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This #40 cobalt threaded-shank drill bit has a 0.0980-inch diameter and 1/2-inch overall length. It features a 1/4"-28 thread shank for secure tool holding in precision drilling operations. The black oxide finish and NAS 965 Type D compliance suit it for high-tolerance hole-making in metals
ROCKY MOUNTAIN TWIST
This #40 cobalt threaded-shank drill bit has a 0.0980-inch diameter and 1/2-inch overall length. It features a 1/4"-28 thread shank for secure tool holding in precision drilling operations. The black oxide finish and NAS 965 Type D compliance suit it for high-tolerance hole-making in metals

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