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ROCKY MOUNTAIN TWIST 1/4"-28 Threaded-Shank HSS Drill Bit - High-Speed Steel Threaded-Shank Drill Bits
ROCKY MOUNTAIN TWISTHigh-Speed Steel Threaded-Shank Drill Bits

ROCKY MOUNTAIN TWIST 1/4"-28 Threaded-Shank HSS Drill Bit

The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: 1/4" is a high-speed steel threaded-shank drill bit with a 0.2500" diameter and a 1/4"-28 thread size. It features a black oxide finish and meets NAS 965 Type B…

SKU 3G-OTH-192766

Also listed as: 953HS14ST · 953HS1 4ST · 953HS1-4ST

Brand
ROCKY MOUNTAIN TWIST
Item
1/4"-28 Threaded-Shank HSS Drill Bit
Part Number
953HS1/4ST
Category
High-Speed Steel Threaded-Shank Drill Bits
Available to Order
Also known as:953HS1/4STROCKY MOUNTAIN TWIST
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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
953HS1/4ST
Type
Black Oxide HSS
Overall Lg
9/16"

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: 1/4" is a high-speed steel threaded-shank drill bit with a 0.2500" 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 9/16" (MPN 953HS1/4ST).

Frequently Asked Questions

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

This drill bit is designed for precision drilling in aerospace and industrial applications where a threaded shank is required for secure tool holding. It meets NAS 965 Type B specifications, making it suitable for high-tolerance work on metals using a collet or threaded holder.

What are the specifications of the ROCKY MOUNTAIN TWIST 953HS1/4ST drill bit?

The ROCKY MOUNTAIN TWIST 953HS1/4ST is a high-speed steel drill bit with a 0.2500" diameter, 1/4"-28 thread size, and 9/16" overall length. It has a black oxide finish and complies with NAS 965 Type B standards. The manufacturer part number is 953HS1/4ST.

Where to buy ROCKY MOUNTAIN TWIST drill bits worldwide?

3G Electric supplies ROCKY MOUNTAIN TWIST drill bits worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on the 953HS1/4ST threaded shank drill bit.

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

Select based on thread size (e.g., 1/4"-28), diameter (0.2500"), and overall length (9/16") to match your tool holder. Ensure the bit meets NAS 965 Type B for aerospace-grade tolerance. ROCKY MOUNTAIN TWIST bits are made from high-speed steel with black oxide for reduced friction.

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
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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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This high-speed steel drill bit features a threaded shank for secure mounting in tool holders. It has a black oxide finish and a 9/16" overall length. 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 mounting in tool holders. It has a black oxide finish and a 9/16" overall length. Suitable for precision drilling in metalworking applications requiring a threaded shank
This high-speed steel drill bit features a threaded shank for secure mounting in tool holders. The black oxide finish provides wear resistance and reduces friction during operation. With a 1/8" diameter and 1-1/4" overall length, it is suitable for precision drilling in metal and composite materials
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This high-speed steel drill bit features a threaded shank for secure mounting in tool holders. The black oxide finish provides wear resistance and reduces friction during operation. With a 1/8" diameter and 1-1/4" overall length, it is suitable for precision drilling in metal and composite materials

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