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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 2-1/8" 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: 5/16", 2-1/8" Overall Lg

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16" is a high-speed steel threaded-shank drill bit with a 0.3125-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965…

SKU 3G-OTH-192773

Also listed as: 953HS516LS · 953HS5 16LS · 953HS5-16LS

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit: 5/16", 2-1/8" 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
953HS5/16LS
Type
Black Oxide HSS
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: 5/16" is a high-speed steel threaded-shank drill bit with a 0.3125-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type B specification, with a 2-1/8" overall length (MPN 953HS5/16LS).

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST 5/16" threaded shank drill bit used for?

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

What are the specifications of the ROCKY MOUNTAIN TWIST 953HS5/16LS drill bit?

The ROCKY MOUNTAIN TWIST 953HS5/16LS is a 5/16" diameter (0.3125") threaded shank drill bit with a 1/4"-28 thread size, 2-1/8" overall length, black oxide HSS construction, and meets NAS 965 Type B specification. 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 like the 953HS5/16LS to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this NAS 965 Type B bit.

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

For aerospace applications, match the thread size (e.g., 1/4"-28) and shank type to your tool holder. Ensure the bit meets NAS 965 Type B specification for grip length and tolerance. The ROCKY MOUNTAIN TWIST 5/16" bit is a common choice. 3G Electric can help source the right 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 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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Cross-referenced by specification & description
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS5/16SS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/16", 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS5/16SS)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/16", 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HS3/16LS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 3/16", 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HS3/16LS)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/32", 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HS5/32LS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/32", 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HS5/32LS)
This high-speed steel drill bit features a 3/16" diameter and a 1/4"-28 threaded shank for secure mounting in tool holders. The black oxide finish provides wear resistance and heat dissipation. Overall length is 1-1/4". Suitable for precision drilling in metal and composite materials in industrial applications
ROCKY MOUNTAIN TWIST
This high-speed steel drill bit features a 3/16" diameter and a 1/4"-28 threaded shank for secure mounting in tool holders. The black oxide finish provides wear resistance and heat dissipation. Overall length is 1-1/4". Suitable for precision drilling in metal and composite materials in industrial applications
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/32", 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS5/32SS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 5/32", 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS5/32SS)
This high-speed steel drill bit features a 7/32" diameter and a 1/4"-28 threaded shank for secure retention in compatible tool holders. The black oxide finish provides lubricity and corrosion resistance. With a 2-1/8" overall length, it is suited for drilling in metals on CNC machines and drill presses
ROCKY MOUNTAIN TWIST
This high-speed steel drill bit features a 7/32" diameter and a 1/4"-28 threaded shank for secure retention in compatible tool holders. The black oxide finish provides lubricity and corrosion resistance. With a 2-1/8" overall length, it is suited for drilling in metals on CNC machines and drill presses

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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"
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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
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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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