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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #12, 1-1/4" Overall Lg - High-Speed Steel Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTHigh-Speed Steel Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #12, 1-1/4" Overall Lg

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #12 is a high-speed steel threaded-shank drill bit with a 0.1890-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B…

SKU 3G-OTH-192852

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit: #12, 1-1/4" Overall Lg
Category
High-Speed Steel Threaded-Shank Drill Bits
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953HS12SS
Type
Black Oxide HSS
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: #12 is a high-speed steel threaded-shank drill bit with a 0.1890-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B specifications. The overall length is 1-1/4 inches, and the manufacturer part number is 953HS12SS.

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST #12 threaded shank drill bit used for?

This #12 high-speed steel drill bit with a 1/4"-28 threaded shank is used for precision drilling in aerospace and industrial applications requiring NAS 965 Type B compliance. The black oxide finish reduces friction and improves chip evacuation. 3G Electric supplies this bit for worldwide delivery.

What are the specifications of the ROCKY MOUNTAIN TWIST 953HS12SS drill bit?

The ROCKY MOUNTAIN TWIST 953HS12SS is a #12 threaded shank drill bit with a 0.1890-inch diameter, 1/4"-28 thread size, and 1-1/4" overall length. It is made of black oxide high-speed steel and meets NAS 965 Type B specifications. 3G Electric sources this bit globally.

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

3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide, handling full logistics and customs clearance. We source genuine industrial equipment across 14 departments, including precision cutting tools. Contact us for availability and delivery to your location.

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

Select based on thread size (1/4"-28 for this #12 bit), diameter (0.1890 inches), and material compatibility. The black oxide HSS construction suits ferrous metals. Ensure the shank matches your toolholder. 3G Electric can help verify specifications for your application.

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 high-speed steel 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
This #12 high-speed steel drill bit features a 0.1890-inch diameter and a 1/4"-28 threaded shank for secure retention in tool holders. The black oxide finish provides wear resistance. With an overall length of 2-1/8 inches, it is suited for precision drilling in metalworking tasks requiring a #12 wire-gauge hole
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This #12 high-speed steel drill bit features a 0.1890-inch diameter and a 1/4"-28 threaded shank for secure retention in tool holders. The black oxide finish provides wear resistance. With an overall length of 2-1/8 inches, it is suited for precision drilling in metalworking tasks requiring a #12 wire-gauge hole
This high-speed steel drill bit features a threaded shank for secure mounting in tool holders. It has a black oxide finish and a 9/16" overall length. Suitable for precision drilling in metalworking applications requiring a threaded shank
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This high-speed steel drill bit features a threaded shank for secure mounting in tool holders. It has a black oxide finish and a 9/16" overall length. Suitable for precision drilling in metalworking applications requiring a threaded shank
High-speed steel drill bit with a threaded shank for secure tool holding. Features a 0.1890-inch diameter, 1/4"-28 thread size, and black oxide finish. Conforms to NAS 965 Type B. Used for precision drilling in metal components where a threaded shank is required
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High-speed steel drill bit with a threaded shank for secure tool holding. Features a 0.1890-inch diameter, 1/4"-28 thread size, and black oxide finish. Conforms to NAS 965 Type B. Used for precision drilling in metal components where a threaded shank is required
This #11 high-speed steel drill bit features a 1/4"-28 threaded shank for secure mounting in tool holders. With a 0.1910-inch diameter and 1-1/4" overall length, it is suited for precision drilling in metalworking applications requiring a threaded shank. The black oxide finish provides resistance to wear and corrosion. Meets NAS 965 Type B specifications
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This #11 high-speed steel drill bit features a 1/4"-28 threaded shank for secure mounting in tool holders. With a 0.1910-inch diameter and 1-1/4" overall length, it is suited for precision drilling in metalworking applications requiring a threaded shank. The black oxide finish provides resistance to wear and corrosion. Meets NAS 965 Type B specifications
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #11, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HS11LS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #11, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HS11LS)
High-speed steel threaded-shank drill bit with a 0.2280-inch diameter and 1/4"-28 thread size. Black oxide finish. Overall length 5/8 inch. Conforms to NAS 965 Type B specifications. Used for precision drilling in applications requiring threaded shank retention, such as in metal alloys and composite materials
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High-speed steel threaded-shank drill bit with a 0.2280-inch diameter and 1/4"-28 thread size. Black oxide finish. Overall length 5/8 inch. Conforms to NAS 965 Type B specifications. Used for precision drilling in applications requiring threaded shank retention, such as in metal alloys and composite materials

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This high-speed steel threaded-shank drill bit features a black oxide finish and a 0.2460-inch diameter (Letter D). It has a 1/4"-28 thread size and a 9/16" overall length. The bit meets NAS 965 Type B specifications. Typical applications include precision drilling in metalworking where threaded shank retention is required
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This high-speed steel threaded-shank drill bit features a black oxide finish and a 0.2460-inch diameter (Letter D). It has a 1/4"-28 thread size and a 9/16" overall length. The bit meets NAS 965 Type B specifications. Typical applications include precision drilling in metalworking where threaded shank retention is required
This high-speed steel drill bit features a threaded shank for secure tool retention in precision drilling applications. With a 9/32" diameter and 1/4"-28 thread, it is suitable for metalworking tasks requiring reliable hole placement. The black oxide finish provides resistance to wear and corrosion. Overall length is 2-1/8"
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This high-speed steel drill bit features a threaded shank for secure tool retention in precision drilling applications. With a 9/32" diameter and 1/4"-28 thread, it is suitable for metalworking tasks requiring reliable hole placement. The black oxide finish provides resistance to wear and corrosion. Overall length is 2-1/8"
This 5/16" diameter drill bit features a 1/4"-28 threaded shank for secure mounting in tool holders. Made from black oxide high-speed steel (HSS) with a 5/8" overall length, it meets NAS 965 Type B specifications. Suitable for precision drilling in metalworking applications requiring a threaded shank
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This 5/16" diameter drill bit features a 1/4"-28 threaded shank for secure mounting in tool holders. Made from black oxide high-speed steel (HSS) with a 5/8" overall length, it meets NAS 965 Type B specifications. Suitable for precision drilling in metalworking applications requiring a threaded shank
This threaded-shank drill bit is made from high-speed steel with a black oxide finish. It has a #40 diameter (0.0980 inches) and a 1/4"-28 thread size, with an overall length of 1/2". Conforms to NAS 965 Type B standards. Used for precision drilling in applications requiring threaded shank retention, such as aerospace and industrial metalworking
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This threaded-shank drill bit is made from high-speed steel with a black oxide finish. It has a #40 diameter (0.0980 inches) and a 1/4"-28 thread size, with an overall length of 1/2". Conforms to NAS 965 Type B standards. Used for precision drilling in applications requiring threaded shank retention, such as aerospace and industrial metalworking
High-speed steel drill bit with a #29 diameter (0.1360") and 1/4"-28 threaded shank for secure retention in tool holders. Black oxide finish reduces friction and improves wear resistance. Overall length 2-1/8". Suitable for precision drilling in metalworking applications requiring a threaded shank
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High-speed steel drill bit with a #29 diameter (0.1360") and 1/4"-28 threaded shank for secure retention in tool holders. Black oxide finish reduces friction and improves wear resistance. Overall length 2-1/8". Suitable for precision drilling in metalworking applications requiring a threaded shank
This high-speed steel drill bit features a threaded shank for secure tool holding in precision drilling applications. It has a 0.1590-inch diameter, 1/4"-28 thread size, and 13/32" overall length. The black oxide finish provides resistance to wear and corrosion. Conforms to NAS 965 Type B
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This high-speed steel drill bit features a threaded shank for secure tool holding in precision drilling applications. It has a 0.1590-inch diameter, 1/4"-28 thread size, and 13/32" overall length. The black oxide finish provides resistance to wear and corrosion. Conforms to NAS 965 Type B
This #11 high-speed steel drill bit features a 1/4"-28 threaded shank for secure mounting in collet chucks or threaded holders. The black oxide finish reduces friction and improves chip flow. Overall length is 13/32". Suitable for precision drilling applications requiring a threaded shank
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This #11 high-speed steel drill bit features a 1/4"-28 threaded shank for secure mounting in collet chucks or threaded holders. The black oxide finish reduces friction and improves chip flow. Overall length is 13/32". Suitable for precision drilling applications requiring a threaded shank
High-speed steel drill bit with a #18 diameter (0.1695") and a 1/4"-28 threaded shank for secure mounting in tool holders. Black oxide finish reduces friction and improves wear resistance. Overall length of 9/16". Suitable for precision drilling in metalworking applications requiring a threaded shank
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High-speed steel drill bit with a #18 diameter (0.1695") and a 1/4"-28 threaded shank for secure mounting in tool holders. Black oxide finish reduces friction and improves wear resistance. Overall length of 9/16". Suitable for precision drilling in metalworking applications requiring a threaded shank