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ROCKY MOUNTAIN TWIST 13/64" Cobalt Threaded-Shank Drill Bit - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST 13/64" Cobalt Threaded-Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit (13/64") is a cobalt threaded-shank drill bit with a 1/4"-28 thread size and a 0.2031-inch diameter. It features a 2-1/8" overall length, black oxide finish, and…

SKU 3G-OTH-196508

Also listed as: 953CO1364LS · 953CO13 64LS · 953CO13-64LS

Brand
ROCKY MOUNTAIN TWIST
Item
13/64" Cobalt Threaded-Shank Drill Bit
Part Number
953CO13/64LS
Category
Cobalt Threaded-Shank Drill Bits
Available to Order
Also known as:953CO13/64LSROCKY 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
953CO13/64LS
Type
Black Oxide Cobalt
Overall Lg
2-1/8"

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

Product Description

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit (13/64") is a cobalt threaded-shank drill bit with a 1/4"-28 thread size and a 0.2031-inch diameter. It features a 2-1/8" overall length, black oxide finish, and meets NAS 965 Type D specifications.

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST 13/64" threaded shank drill bit used for?

This cobalt drill bit is designed for drilling precision holes in hard metals and aerospace alloys. Its 1/4"-28 threaded shank allows secure mounting in toolholders, making it ideal for high-torque applications in machining and maintenance across industrial departments.

What are the specifications of the ROCKY MOUNTAIN TWIST 953CO13/64LS drill bit?

The bit has a 0.2031-inch diameter (13/64"), 2-1/8" overall length, 1/4"-28 threaded shank, black oxide cobalt finish, and meets NAS 965 Type D standards. It is manufactured by ROCKY MOUNTAIN TWIST under MPN 953CO13/64LS.

Where to buy ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST drill bits globally. As a sourcing specialist across 14 industrial departments, we handle logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this NAS 965 Type D bit.

How to select the correct threaded shank drill bit for aerospace applications?

Match the thread size (e.g., 1/4"-28) to your toolholder, and choose a diameter like 13/64" for specific hole tolerances. Cobalt bits with black oxide finish resist heat and wear. Verify NAS 965 Type D compliance for aerospace standards. 3G Electric can help interpret your requirements.

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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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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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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