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ROCKY MOUNTAIN TWIST 953CO3/16LS Cobalt Threaded-Shank Drill Bit - Cobalt Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTCobalt Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST 953CO3/16LS Cobalt Threaded-Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit (SKU 3G-OTH-196502) is a 3/16" (0.1875") cobalt drill bit with a 1/4"-28 threaded shank, meeting NAS 965 Type D specifications. It features a black oxide finish and…

SKU 3G-OTH-196502

Also listed as: 953CO316LS · 953CO3 16LS · 953CO3-16LS

Brand
ROCKY MOUNTAIN TWIST
Item
953CO3/16LS Cobalt Threaded-Shank Drill Bit
Category
Cobalt Threaded-Shank Drill Bits
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953CO3/16LS
Type
Black Oxide Cobalt
Overall Lg
2-1/8"

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 (SKU 3G-OTH-196502) is a 3/16" (0.1875") cobalt drill bit with a 1/4"-28 threaded shank, meeting NAS 965 Type D specifications. It features a black oxide finish and an overall length of 2-1/8".

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST threaded shank drill bit used for?

This cobalt drill bit is designed for precision drilling in aerospace and industrial applications where a threaded shank provides secure retention in tool holders. The 3/16" size and NAS 965 Type D compliance make it suitable for high-tolerance holemaking in hardened materials.

What are the specifications of the ROCKY MOUNTAIN TWIST 953CO3/16LS drill bit?

The bit has a 3/16" (0.1875") diameter, 1/4"-28 threaded shank, and 2-1/8" overall length. It is made from cobalt steel with a black oxide finish and meets NAS 965 Type D standards. The manufacturer part number is 953CO3/16LS.

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 location. Contact us to source the 953CO3/16LS or other cobalt drill bits for your operations.

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

Match the shank thread size (e.g., 1/4"-28) to your tool holder, and choose a diameter and length suited to the hole depth. For aerospace, ensure the bit meets NAS 965 Type D specifications. ROCKY MOUNTAIN TWIST cobalt bits offer durability for high-strength alloys.

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter D, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CODLS)
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter D, 2-1/8" Overall Lg, Black Oxide Cobalt (MPN 953CODLS)
CLEVELAND Screw Machine Drill Bit: #28, 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14389)
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CLEVELAND Screw Machine Drill Bit: #28, 135° Split Point, TiN-Coated Cobalt, Fast Spiral (MPN C14389)
Cobalt screw-machine length drill bit with TiN coating and fast spiral flute design, intended for deep hole-drilling applications. Features a 135° split point to reduce walking during start. Suitable for use in metalworking operations requiring precise hole diameters
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Cobalt screw-machine length drill bit with TiN coating and fast spiral flute design, intended for deep hole-drilling applications. Features a 135° split point to reduce walking during start. Suitable for use in metalworking operations requiring precise hole diameters
CLEVELAND Screw Machine Drill Bit: 19/64", 135° Split Point, Straw/Bronze Cobalt, Fast Spiral (MPN C14215)
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CLEVELAND Screw Machine Drill Bit: 19/64", 135° Split Point, Straw/Bronze Cobalt, Fast Spiral (MPN C14215)
Cobalt screw-machine length drill bit with TiN coating and fast spiral flute design for deep hole-drilling applications. Features a 135° split point to reduce walking and enhance chip evacuation. Suitable for use in tough materials such as stainless steel and alloy steels
CLEVELAND
Cobalt screw-machine length drill bit with TiN coating and fast spiral flute design for deep hole-drilling applications. Features a 135° split point to reduce walking and enhance chip evacuation. Suitable for use in tough materials such as stainless steel and alloy steels
CLEVELAND C16640 is a #28 jobber-length drill bit with a 0.1405-inch diameter, featuring TiN-coated cobalt construction and a 135° split point. The fast spiral flute design is optimized for deep-hole drilling in hard materials, reducing walking and providing heat resistance for extended tool life in industrial metalworking applications
CLEVELAND
CLEVELAND C16640 is a #28 jobber-length drill bit with a 0.1405-inch diameter, featuring TiN-coated cobalt construction and a 135° split point. The fast spiral flute design is optimized for deep-hole drilling in hard materials, reducing walking and providing heat resistance for extended tool life in industrial metalworking applications

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