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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-195586

Brand
ROCKY MOUNTAIN TWIST
Item
#20 Cobalt Threaded-Shank Drill Bit
Part Number
953CO20SS
Category
Cobalt Threaded-Shank Drill Bits
Available to Order
Also known as:953CO20SSROCKY MOUNTAIN TWIST
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953CO20SS
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: #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, with an overall length of 1-1/4 inches (MPN 953CO20SS).

Frequently Asked Questions

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

This cobalt threaded-shank drill bit is designed for precision drilling in aerospace and industrial applications where a threaded shank provides secure retention in tool holders. It meets NAS 965 Type D specifications, making it suitable for high-tolerance holemaking in hardened materials.

What are the specifications of the ROCKY MOUNTAIN TWIST #20 drill bit?

The ROCKY MOUNTAIN TWIST #20 drill bit has a 0.1610-inch diameter, 1/4\"-28 thread size, and 1-1/4\" overall length. It features a black oxide cobalt finish and meets NAS 965 Type D standards. The manufacturer part number is 953CO20SS.

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 solutions provider, we handle full logistics and customs clearance to deliver this NAS 965 Type D cobalt bit to your facility, regardless of location.

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

Select based on thread size (1/4\"-28 for this #20 bit), diameter (0.1610\"), and material compatibility. Cobalt black oxide bits suit harder alloys. Verify NAS 965 Type D compliance for aerospace work. 3G Electric can help match your application requirements to the correct ROCKY MOUNTAIN TWIST part.

Used in

Common applications for ROCKY MOUNTAIN TWIST
Aerospace assembly — NAS 965 Type B compliant threaded-shank drill bits for drilling rivet holes in aluminum and titanium structures.
Automotive maintenance — #11 and #12 threaded-shank drill bits for repairing threaded holes and drilling out broken fasteners in engine blocks.
General metal fabrication — 1/4" diameter threaded-shank drill bits for creating precise holes in steel plates and profiles.
CNC machining — fractional and numbered threaded-shank drill bits mounted in quick-change tool holders for high-volume drilling.
Tool and die making — 5/32" and 7/32" threaded-shank drill bits for drilling water lines and ejector pin holes in mold bases.
Maintenance and repair — #35 and #4 threaded-shank drill bits for precision drilling in confined spaces using portable magnetic drill presses.
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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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