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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter A, 9/16" 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: Letter A, 9/16" Overall Lg

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter A is a high-speed steel threaded-shank drill bit with a 0.2340-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS…

SKU 3G-OTH-192906

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit: Letter A, 9/16" Overall Lg
Category
High-Speed Steel Threaded-Shank Drill Bits
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Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
953HSAST
Type
Black Oxide HSS
Overall Lg
9/16"
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ROCKY MOUNTAIN TWIST Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter A is a high-speed steel threaded-shank drill bit with a 0.2340-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type B, with an overall length of 9/16" (MPN 953HSAST).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

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

This drill bit is used for precision drilling in aerospace and industrial applications where a threaded shank is required for secure mounting in tool holders. Its black oxide HSS construction provides wear resistance and heat dissipation during high-speed operations.

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

The ROCKY MOUNTAIN TWIST 953HSAST is a Letter A drill bit with a 0.2340-inch diameter, 1/4"-28 threaded shank, and 9/16" overall length. It is made of black oxide high-speed steel and conforms to NAS 965 Type B for aerospace-grade fastening.

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

3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide. As a global industrial solutions provider, 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?

Select a bit that matches your required hole diameter and thread size, such as the 1/4"-28 shank on this ROCKY MOUNTAIN TWIST bit. Ensure it meets applicable standards like NAS 965 Type B for aerospace use. Verify overall length and material—black oxide HSS suits ferrous metals.

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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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter A, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HSASS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2340; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter A, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HSASS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2340; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter A, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HSALS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2340; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter A, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HSALS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2340; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter B, 9/16" Overall Lg, Black Oxide HSS (MPN 953HSBST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2380; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter B, 9/16" Overall Lg, Black Oxide HSS (MPN 953HSBST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2380; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter B, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HSBLS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2380; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter B, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HSBLS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2380; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter D, 9/16" Overall Lg, Black Oxide HSS (MPN 953HSDST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2460; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter D, 9/16" Overall Lg, Black Oxide HSS (MPN 953HSDST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2460; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HSCLS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2420; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C, 2-1/8" Overall Lg, Black Oxide HSS (MPN 953HSCLS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2420; attr1235683: NAS 965 Type B.

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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #25, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS25SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1495; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #25, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS25SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1495; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 7/64", 1/2" Overall Lg, Black Oxide HSS (MPN 953HS7/64ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1094; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 7/64", 1/2" Overall Lg, Black Oxide HSS (MPN 953HS7/64ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1094; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #3, 5/8" Overall Lg, Black Oxide HSS, NAS 965 Type B (MPN 953HS3ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2130; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #3, 5/8" Overall Lg, Black Oxide HSS, NAS 965 Type B (MPN 953HS3ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2130; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #36, 1" Overall Lg, Black Oxide HSS, NAS 965 Type B (MPN 953HS36SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1065; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #36, 1" Overall Lg, Black Oxide HSS, NAS 965 Type B (MPN 953HS36SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1065; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C, 9/16" Overall Lg, Black Oxide HSS (MPN 953HSCST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2420; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter C, 9/16" Overall Lg, Black Oxide HSS (MPN 953HSCST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2420; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 13/64", 5/8" Overall Lg, Black Oxide HSS (MPN 953HS13/64ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2031; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 13/64", 5/8" Overall Lg, Black Oxide HSS (MPN 953HS13/64ST). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2031; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #4, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS4SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2090; attr1235683: NAS 965 Type B.
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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #4, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS4SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.2090; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #30, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS30SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1285; attr1235683: NAS 965 Type B.
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #30, 1-1/4" Overall Lg, Black Oxide HSS (MPN 953HS30SS). Key specifications — attr1235676: ROCKY MOUNTAIN TWIST; attr1235682: 1/4"-28; attr1235677: 0.1285; attr1235683: NAS 965 Type B.