ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #28, 2-1/8" Overall Lg
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #28 is a high-speed steel threaded-shank drill bit with a 1/4"-28 thread size and a 0.1405-inch diameter. It features a 2-1/8" overall length, black oxide finish…
SKU 3G-OTH-192893
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Product Description
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #28 is a high-speed steel threaded-shank drill bit with a 1/4"-28 thread size and a 0.1405-inch diameter. It features a 2-1/8" overall length, black oxide finish, and meets NAS 965 Type B specifications. This bit is designed for precision drilling applications requiring a threaded shank.
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 #28 used for?
This drill bit is used 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 hole-making in metal and composite materials.
What are the specifications of the ROCKY MOUNTAIN TWIST #28 drill bit?
The ROCKY MOUNTAIN TWIST #28 drill bit has a 0.1405-inch diameter, 1/4\"-28 thread size, and 2-1/8\" overall length. It is made from black oxide high-speed steel (HSS) and meets NAS 965 Type B standards. The manufacturer part number is 953HS28LS.
Where to buy ROCKY MOUNTAIN TWIST 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, thread size, and material. For aerospace applications, ensure the bit meets NAS 965 Type B specifications, as the ROCKY MOUNTAIN TWIST #28 does. Use a 1/4\"-28 threaded shank for secure retention in compatible tool holders.
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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.















