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ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #31, 1" Overall Lg, Black Oxide HSS - High-Speed Steel Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTHigh-Speed Steel Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #31, 1" Overall Lg, Black Oxide HSS

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #31 is a high-speed steel threaded-shank drill bit with a 0.1200-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965…

SKU 3G-OTH-192805

Brand
ROCKY MOUNTAIN TWIST
Item
Threaded Shank Drill Bit: #31, 1" Overall Lg, Black Oxide HSS
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
953HS31SS
Type
Black Oxide HSS, NAS 965 Type B
Overall Lg
1"

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: #31 is a high-speed steel threaded-shank drill bit with a 0.1200-inch diameter and a 1/4"-28 thread size. It features a black oxide finish and conforms to NAS 965 Type B standards. This bit has a 1-inch overall length and is identified by manufacturer part number 953HS31SS.

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit #31 used for?

This drill bit is designed for precision drilling in aerospace and industrial applications where threaded shank retention is required. It conforms to NAS 965 Type B standards, making it suitable for use in jigs, fixtures, and assembly operations that demand secure bit holding and accurate hole sizing.

What are the specifications of the ROCKY MOUNTAIN TWIST #31 drill bit?

The bit has a 0.1200-inch diameter (#31), a 1/4\"-28 threaded shank, and a 1-inch overall length. It is made from high-speed steel with a black oxide finish and meets NAS 965 Type B specifications. The manufacturer part number is 953HS31SS.

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 equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the NAS 965 Type B #31 bit.

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

Select based on thread size (1/4\"-28 for this bit), diameter (0.1200 inch), and overall length (1 inch). Ensure the shank matches your tool holder's thread. For aerospace work, verify NAS 965 Type B compliance. 3G Electric can help match your application requirements 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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