Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 11/64", 1-1/4" Overall Lg - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 11/64", 1-1/4" Overall Lg

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit (11/64") is a cobalt threaded-shank drill bit with a 1/4"-28 thread size and a 0.1719-inch diameter. It features a 1-1/4" overall length, black oxide finish, and…

SKU 3G-OTH-196487

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit: 11/64", 1-1/4" Overall Lg
Category
Cobalt Threaded-Shank Drill Bits
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953CO11/64SS
Type
Black Oxide Cobalt
Overall Lg
1-1/4"
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit (11/64") is a cobalt threaded-shank drill bit with a 1/4"-28 thread size and a 0.1719-inch diameter. It features a 1-1/4" overall length, black oxide finish, and meets NAS 965 Type D specifications.

Frequently Asked Questions

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

This 11/64" cobalt drill bit is designed for drilling precise holes in hardened metals and aerospace alloys. Its threaded 1/4"-28 shank allows secure mounting in tool holders, making it ideal for CNC machining, aircraft maintenance, and industrial fabrication where high torque and accuracy are required.

What are the specifications of the ROCKY MOUNTAIN TWIST 953CO11/64SS drill bit?

The bit has a 0.1719-inch diameter (11/64"), 1-1/4" overall length, and a 1/4"-28 threaded shank. It is made from black oxide cobalt steel and meets NAS 965 Type D standards. The manufacturer part number is 953CO11/64SS.

Where to buy ROCKY MOUNTAIN TWIST drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the 953CO11/64SS model.

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

Match the thread size (e.g., 1/4"-28) to your tool holder and choose a diameter that meets your hole tolerance. For hardened materials, select cobalt steel with black oxide finish. Verify NAS 965 Type D compliance for aerospace specs. 3G Electric can help source the right ROCKY MOUNTAIN TWIST bit.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter D, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CODLS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2460; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter D, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CODLS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2460; attr1235683: NAS 965 Type D.
CLEVELAND Screw Machine Drill Bit: 33/64", 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14350). Key specifications — attr1233209: 0.5156.
CLEVELAND
CLEVELAND Screw Machine Drill Bit: 33/64", 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14350). Key specifications — attr1233209: 0.5156.
CLEVELAND Screw Machine Drill Bit: 11/64", 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14328). Key specifications — attr1233209: 0.1719.
CLEVELAND
CLEVELAND Screw Machine Drill Bit: 11/64", 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14328). Key specifications — attr1233209: 0.1719.
CLEVELAND Screw Machine Drill Bit: 25/64", 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14342). Key specifications — attr1233209: 0.3906.
CLEVELAND
CLEVELAND Screw Machine Drill Bit: 25/64", 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14342). Key specifications — attr1233209: 0.3906.
CLEVELAND Taper Length Drill Bit: 11/64", 118° Notched Point, Straw/Bronze Cobalt, Tang Shank (MPN C83004). Key specifications — attr1233898: 0.1719.
CLEVELAND
CLEVELAND Taper Length Drill Bit: 11/64", 118° Notched Point, Straw/Bronze Cobalt, Tang Shank (MPN C83004). Key specifications — attr1233898: 0.1719.
CLEVELAND Screw Machine Drill Bit: #28, 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14389). Key specifications — attr1233209: 0.1405.
CLEVELAND
CLEVELAND Screw Machine Drill Bit: #28, 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14389). Key specifications — attr1233209: 0.1405.

More from ROCKY MOUNTAIN TWIST

View all ROCKY MOUNTAIN TWIST parts →
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #5, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO5LS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2055; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #5, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO5LS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2055; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO5/16LS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.3125; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO5/16LS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.3125; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #5, 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO5SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2055; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #5, 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO5SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2055; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #27, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO27VS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1440; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #27, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO27VS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1440; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #10, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO10VS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1935; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #10, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO10VS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1935; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #12, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO12LS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1890; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #12, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CO12LS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1890; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #31, 1/2" Overall Lg, Black Oxide Cobalt (MPN 953CO31ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1200; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #31, 1/2" Overall Lg, Black Oxide Cobalt (MPN 953CO31ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1200; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #29, 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO29SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1360; attr1235683: NAS 965 Type D.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #29, 1-1/4" Overall Lg, Black Oxide Cobalt (MPN 953CO29SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1360; attr1235683: NAS 965 Type D.