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ROCKY MOUNTAIN TWIST #11 Cobalt Threaded-Shank Drill Bit - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST #11 Cobalt Threaded-Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #11 is a cobalt threaded-shank drill bit with a 0.1910-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type D, with…

SKU 3G-OTH-195622

Brand
ROCKY MOUNTAIN TWIST
Item
#11 Cobalt Threaded-Shank Drill Bit
Part Number
953CO11SS
Category
Cobalt Threaded-Shank Drill Bits
Available to Order
Also known as:953CO11SSROCKY MOUNTAIN TWIST
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953CO11SS
Type
Black Oxide Cobalt
Overall Lg
1-1/4"

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

Product Description

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #11 is a cobalt threaded-shank drill bit with a 0.1910-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type D, with an overall length of 1-1/4 inches (MPN 953CO11SS).

Frequently Asked Questions

What is a ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit used for?

This #11 cobalt drill bit is designed for precision drilling in aerospace and industrial applications where a threaded shank (1/4"-28) provides secure retention in tool holders. The black oxide cobalt construction handles tough materials like stainless steel and titanium, and it conforms to NAS 965 Type D for demanding environments.

What are the specifications of the ROCKY MOUNTAIN TWIST #11 drill bit?

The ROCKY MOUNTAIN TWIST 953CO11SS has a 0.1910-inch diameter (#11), 1/4"-28 threaded shank, and 1-1/4" overall length. It is made of black oxide cobalt and meets NAS 965 Type D standards. This combination suits high-torque drilling in aerospace-grade materials.

Where to buy ROCKY MOUNTAIN TWIST drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the 953CO11SS or other cobalt drill bits.

How to select the right threaded shank drill bit for aerospace work?

Choose a bit that matches your material and holder. The ROCKY MOUNTAIN TWIST #11 with 1/4"-28 thread and NAS 965 Type D compliance is ideal for aerospace fastening. Ensure the shank thread matches your collet, and use cobalt for heat resistance in hard alloys. Always verify overall length clearance.

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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