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ROCKY MOUNTAIN TWIST 953HS1/8SS High-Speed Steel Threaded-Shank Drill Bit - High-Speed Steel Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTHigh-Speed Steel Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST 953HS1/8SS High-Speed Steel Threaded-Shank Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 1/8" is a high-speed steel threaded-shank drill bit with a 0.1250" diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B…

SKU 3G-OTH-192749

Also listed as: 953HS18SS · 953HS1 8SS · 953HS1-8SS

Brand
ROCKY MOUNTAIN TWIST
Item
953HS1/8SS High-Speed Steel Threaded-Shank Drill Bit
Category
High-Speed Steel 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
953HS1/8SS
Type
Black Oxide HSS
Overall Lg
1-1/4"

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: 1/8" is a high-speed steel threaded-shank drill bit with a 0.1250" diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B specifications, with an overall length of 1-1/4" (MPN 953HS1/8SS).

Frequently Asked Questions

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

This drill bit is used for precision drilling in metal and composite materials, commonly in aerospace and industrial applications. Its threaded shank (1/4"-28) allows secure mounting in tool holders, while the black oxide HSS construction provides wear resistance and reduced friction during operation.

What are the specifications of the ROCKY MOUNTAIN TWIST 953HS1/8SS drill bit?

The ROCKY MOUNTAIN TWIST 953HS1/8SS is a high-speed steel threaded-shank drill bit with a 0.1250" diameter, 1/4"-28 thread size, and 1-1/4" overall length. It features a black oxide finish and meets NAS 965 Type B specifications, making it suitable for demanding drilling tasks.

Where to buy ROCKY MOUNTAIN TWIST drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 953HS1/8SS or other threaded-shank drill bits.

How to select the correct threaded shank drill bit for a job?

Select based on material, diameter, thread size, and shank type. For the ROCKY MOUNTAIN TWIST 953HS1/8SS, ensure your tool holder accepts 1/4"-28 threads and the 0.1250" diameter matches your hole requirement. The black oxide HSS construction suits ferrous metals; for harder materials, consider cobalt or carbide alternatives.

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 OSG screw-machine length drill bit is made from cobalt steel with a TiN coating for extended tool life. It features a 130° R-thinning point that reduces thrust and improves chip evacuation. The 29/64" diameter bit is designed for precision drilling in ferrous and non-ferrous materials on automated lathes and CNC machines
OSG
This OSG screw-machine length drill bit is made from cobalt steel with a TiN coating for extended tool life. It features a 130° R-thinning point that reduces thrust and improves chip evacuation. The 29/64" diameter bit is designed for precision drilling in ferrous and non-ferrous materials on automated lathes and CNC machines
This OSG general purpose cobalt screw-machine length drill bit features a 130° R-thinning point for reduced thrust and improved chip evacuation. The TiN coating provides enhanced wear resistance and heat dissipation. Suitable for precision drilling in ferrous materials in automated machining centers and high-production environments
OSG
This OSG general purpose cobalt screw-machine length drill bit features a 130° R-thinning point for reduced thrust and improved chip evacuation. The TiN coating provides enhanced wear resistance and heat dissipation. Suitable for precision drilling in ferrous materials in automated machining centers and high-production environments
This OSG screw-machine length drill bit is made from cobalt steel with a TiN coating for enhanced wear resistance. It features a 130° R-thinning point that reduces thrust and improves chip evacuation. Designed for general-purpose drilling in ferrous and non-ferrous materials, it is suitable for use in automated machining centers and production environments
OSG
This OSG screw-machine length drill bit is made from cobalt steel with a TiN coating for enhanced wear resistance. It features a 130° R-thinning point that reduces thrust and improves chip evacuation. Designed for general-purpose drilling in ferrous and non-ferrous materials, it is suitable for use in automated machining centers and production environments
Cobalt screw-machine length drill bit with TiN coating for reduced friction and extended tool life. 23/64" diameter, 130° R-thinning point design. Suitable for high-speed drilling in production environments on ferrous metals and stainless steel
OSG
Cobalt screw-machine length drill bit with TiN coating for reduced friction and extended tool life. 23/64" diameter, 130° R-thinning point design. Suitable for high-speed drilling in production environments on ferrous metals and stainless steel
This OSG cobalt screw-machine length drill bit is designed for general purpose drilling in ferrous and non-ferrous materials. It features a 130° R-thinning point to reduce thrust and improve chip evacuation. The TiN coating enhances wear resistance and heat dissipation. Suitable for automated screw machines and CNC applications
OSG
This OSG cobalt screw-machine length drill bit is designed for general purpose drilling in ferrous and non-ferrous materials. It features a 130° R-thinning point to reduce thrust and improve chip evacuation. The TiN coating enhances wear resistance and heat dissipation. Suitable for automated screw machines and CNC applications
Cobalt screw-machine length drill bit with TiN coating for heat resistance and extended wear life. Features a 130° R-thinning point to reduce thrust. Suitable for high-speed drilling in production environments, including automated machining operations
OSG
Cobalt screw-machine length drill bit with TiN coating for heat resistance and extended wear life. Features a 130° R-thinning point to reduce thrust. Suitable for high-speed drilling in production environments, including automated machining operations

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This #25 high-speed steel drill bit features a black oxide finish and a threaded shank for secure retention in tool holders. With a 0.1495-inch diameter and 1/4"-28 thread, it has an overall length of 1-1/4". Conforms to NAS 965 Type B standards. Suitable for precision drilling in metalworking applications requiring threaded shank tooling
ROCKY MOUNTAIN TWIST
This #25 high-speed steel drill bit features a black oxide finish and a threaded shank for secure retention in tool holders. With a 0.1495-inch diameter and 1/4"-28 thread, it has an overall length of 1-1/4". Conforms to NAS 965 Type B standards. Suitable for precision drilling in metalworking applications requiring threaded shank tooling
This high-speed steel drill bit features a 7/64" diameter and a 1/4"-28 threaded shank for secure retention in tool holders. With a 1/2" overall length and black oxide finish, it is suited for precision drilling in metal and composite materials. Meets NAS 965 Type B specification
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This high-speed steel drill bit features a 7/64" diameter and a 1/4"-28 threaded shank for secure retention in tool holders. With a 1/2" overall length and black oxide finish, it is suited for precision drilling in metal and composite materials. Meets NAS 965 Type B specification
This #3 high-speed steel drill bit features a 1/4"-28 threaded shank for secure mounting in tool holders. With a 0.2130" diameter and 5/8" overall length, it has a black oxide finish for wear resistance and conforms to NAS 965 Type B standards. Suitable for precision drilling in steel and alloys in industrial and aerospace applications
ROCKY MOUNTAIN TWIST
This #3 high-speed steel drill bit features a 1/4"-28 threaded shank for secure mounting in tool holders. With a 0.2130" diameter and 5/8" overall length, it has a black oxide finish for wear resistance and conforms to NAS 965 Type B standards. Suitable for precision drilling in steel and alloys in industrial and aerospace applications
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #36, 1" Overall Lg, Black Oxide HSS, NAS 965 Type B (MPN 953HS36SS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #36, 1" Overall Lg, Black Oxide HSS, NAS 965 Type B (MPN 953HS36SS)
High-speed steel drill bit with a 0.2420-inch diameter (Letter C) and 1/4"-28 threaded shank for secure retention in tool holders. Black oxide finish reduces friction and provides wear resistance. Overall length 9/16". Conforms to NAS 965 Type B. Suitable for drilling steel, aluminum, and other metals in precision applications
ROCKY MOUNTAIN TWIST
High-speed steel drill bit with a 0.2420-inch diameter (Letter C) and 1/4"-28 threaded shank for secure retention in tool holders. Black oxide finish reduces friction and provides wear resistance. Overall length 9/16". Conforms to NAS 965 Type B. Suitable for drilling steel, aluminum, and other metals in precision applications
High-speed steel drill bit with a 13/64" diameter and 1/4"-28 threaded shank for secure mounting in tool holders. Black oxide finish reduces friction and improves wear resistance. Overall length of 5/8". Meets NAS 965 Type B specification. Suitable for precision drilling in industrial applications requiring threaded-shank tooling
ROCKY MOUNTAIN TWIST
High-speed steel drill bit with a 13/64" diameter and 1/4"-28 threaded shank for secure mounting in tool holders. Black oxide finish reduces friction and improves wear resistance. Overall length of 5/8". Meets NAS 965 Type B specification. Suitable for precision drilling in industrial applications requiring threaded-shank tooling
This #4 threaded-shank drill bit is made from high-speed steel with a black oxide finish. It has a 0.2090-inch diameter and a 1/4"-28 thread size, with an overall length of 1-1/4". Conforms to NAS 965 Type B specifications. Used for precision drilling in applications requiring secure tool holding via threaded shanks
ROCKY MOUNTAIN TWIST
This #4 threaded-shank drill bit is made from high-speed steel with a black oxide finish. It has a 0.2090-inch diameter and a 1/4"-28 thread size, with an overall length of 1-1/4". Conforms to NAS 965 Type B specifications. Used for precision drilling in applications requiring secure tool holding via threaded shanks
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #30, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS30SS)
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #30, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS30SS)