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ROCKY MOUNTAIN TWIST Countersink: 100°, 3 Flute, 1/2 in Body Dia - Threaded-Shank Three-Flute Countersinks
ROCKY MOUNTAIN TWISTThreaded-Shank Three-Flute Countersinks

ROCKY MOUNTAIN TWIST Countersink: 100°, 3 Flute, 1/2 in Body Dia

The ROCKY MOUNTAIN TWIST Countersink (MPN 954HS5-10) is a threaded-shank three-flute countersink with a 100° angle, 3 flutes, a 1/2 in body diameter, and a 1/4"-28 shank thread size. This tool is designed for…

SKU 3G-OTH-186103

Also listed as: 954HS510 · 954HS5 10

Brand
ROCKY MOUNTAIN TWIST
Item
Countersink: 100°, 3 Flute, 1/2 in Body Dia
Category
Threaded-Shank Three-Flute Countersinks
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Technical Specifications

ROCKY MOUNTAIN TWIST
Manufacturer Part Number
954HS5-10
Shank Thread Size
1/4"-28

Technical Documents

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ROCKY MOUNTAIN TWIST Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ROCKY MOUNTAIN TWIST Countersink (MPN 954HS5-10) is a threaded-shank three-flute countersink with a 100° angle, 3 flutes, a 1/2 in body diameter, and a 1/4"-28 shank thread size. This tool is designed for countersinking operations requiring a 100° angle and a 1/4"-28 threaded shank.

Frequently Asked Questions

What is the ROCKY MOUNTAIN TWIST Countersink 954HS5-10 used for?

The ROCKY MOUNTAIN TWIST Countersink 954HS5-10 is used for creating a 100° chamfer around a pre-drilled hole, allowing screw heads to sit flush with or below the workpiece surface. It is commonly applied in metalworking, woodworking, and composite fabrication where a 1/4"-28 threaded shank is required.

What are the specifications of the ROCKY MOUNTAIN TWIST Countersink 954HS5-10?

The ROCKY MOUNTAIN TWIST Countersink 954HS5-10 has a 100° angle, 3 flutes, a 1/2 in body diameter, and a 1/4"-28 shank thread size. The manufacturer part number is 954HS5-10. It is designed for threaded-shank applications requiring precise countersinking.

Where to buy the ROCKY MOUNTAIN TWIST Countersink 954HS5-10 worldwide?

You can source the ROCKY MOUNTAIN TWIST Countersink 954HS5-10 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this threaded-shank countersink.

How to select the correct ROCKY MOUNTAIN TWIST Countersink for a 1/4"-28 shank?

To select the correct ROCKY MOUNTAIN TWIST Countersink, verify the shank thread size matches your toolholder: the 954HS5-10 uses a 1/4"-28 thread. Ensure the body diameter (1/2 in) and flute count (3) suit your material and hole size. Always match the countersink angle (100°) to your fastener head angle.

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 threaded-shank three-flute countersinks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #1, 5/8" Overall Lg, Black Oxide Cobalt (MPN 953CO1ST)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #1, 5/8" Overall Lg, Black Oxide Cobalt (MPN 953CO1ST)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter F, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953COFVS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: Letter F, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953COFVS)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #24, 9/16" Overall Lg, Black Oxide Cobalt (MPN 953CO24ST)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #24, 9/16" Overall Lg, Black Oxide Cobalt (MPN 953CO24ST)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #2, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO2VS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #2, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO2VS)
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #21, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO21VS)
ROCKY MOUNTAIN TWIST
ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #21, 13/32" Overall Lg, Black Oxide Cobalt (MPN 953CO21VS)
APPROVED VENDOR Countersink: 100°, 3 Flute, 7/16 in Body Dia, 1/4"-28 Shank, Carbide (MPN 421549)
APPROVED VENDOR Countersink: 100°, 3 Flute, 7/16 in Body Dia, 1/4"-28 Shank, Carbide (MPN 421549)

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