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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #39, 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: #39, 2-1/8" Overall Lg

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit (#39) is a high-speed steel threaded-shank drill bit with a 0.0995-inch diameter, 1/4"-28 thread size, and 2-1/8" overall length. It features a black oxide finish and…

SKU 3G-OTH-192791

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit: #39, 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
953HS39LS
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 (#39) is a high-speed steel threaded-shank drill bit with a 0.0995-inch diameter, 1/4"-28 thread size, and 2-1/8" overall length. It features a black oxide finish and meets NAS 965 Type B specifications.

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #39 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. The #39 size (0.0995 inch) and NAS 965 Type B compliance make it suitable for high-tolerance holemaking in metals.

What are the specifications of the ROCKY MOUNTAIN TWIST #39 drill bit?

The ROCKY MOUNTAIN TWIST #39 drill bit has a 0.0995-inch diameter, 1/4\"-28 threaded shank, and 2-1/8\" overall length. It is made of high-speed steel with a black oxide finish and meets NAS 965 Type B specifications. The manufacturer part number is 953HS39LS.

Where to buy ROCKY MOUNTAIN TWIST drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST threaded shank drill bits worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the #39 bit (MPN 953HS39LS).

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

Select based on required hole diameter (0.0995 inch for #39), thread size (1/4\"-28), and overall length (2-1/8\"). Ensure the shank matches your tool holder. For aerospace work, verify NAS 965 Type B compliance. 3G Electric can help match your application to the correct ROCKY MOUNTAIN TWIST 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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