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OEM APPROVED VENDOR 421528 Carbide Threaded-Shank Three-Flute Countersink - Threaded-Shank Three-Flute Countersinks
OEMThreaded-Shank Three-Flute Countersinks

OEM APPROVED VENDOR 421528 Carbide Threaded-Shank Three-Flute Countersink

The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle, a 5/32 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and carries the manufacturer part number…

SKU 3G-OTH-186113

Brand
OEM
Item
APPROVED VENDOR 421528 Carbide Threaded-Shank Three-Flute Countersink
Category
Threaded-Shank Three-Flute Countersinks
Available to Order
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Worldwide Shipping
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Technical specs
1-Day Quote
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OEM
Manufacturer Part Number
421528
Type
Carbide
Flute
3
Shank
1/4"-28
Body Dia
5/32 in
Shank Thread Size
1/4"-28

Technical Documents

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OEM Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle, a 5/32 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and carries the manufacturer part number 421528.

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 APPROVED VENDOR 421528 countersink used for?

The APPROVED VENDOR 421528 countersink is used to create a conical recess for flat-head screws in metalworking and machining applications. Its 90° angle and three-flute design provide smooth, chatter-free cutting. The carbide construction ensures durability when working with hard materials like steel or stainless steel.

What are the specifications of the APPROVED VENDOR 421528 countersink?

The APPROVED VENDOR 421528 countersink has a 90° angle, three flutes, a 5/32 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and carries the manufacturer part number 421528. This threaded-shank design allows secure mounting in compatible tool holders for precision countersinking.

Where to buy the APPROVED VENDOR 421528 countersink worldwide?

You can source the APPROVED VENDOR 421528 countersink 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; we supply this carbide countersink to procurement teams and machine shops internationally.

How to select the correct countersink for a machining job?

To select the correct countersink, match the angle to your screw head (e.g., 90° for standard flat-head screws) and choose a body diameter larger than the screw head. Ensure the shank thread size, such as 1/4"-28 on the APPROVED VENDOR 421528, fits your tool holder. Carbide tools are ideal for hard materials and high-speed operations.

OEM Products

3G Electric supplies OEM 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
Carbide countersink with three flutes and a 1/4"-28 threaded shank. Body diameter is 1/2 in. Used for creating conical recesses for flat-head screws, deburring, and chamfering in metalworking and machining applications
Carbide countersink with three flutes and a 1/4"-28 threaded shank. Body diameter is 1/2 in. Used for creating conical recesses for flat-head screws, deburring, and chamfering in metalworking and machining applications
This carbide countersink features three flutes and a 1/2 in body diameter with a 1/4"-28 threaded shank. It is used to create a 90° chamfer around pre-drilled holes, allowing screw heads to sit flush with the workpiece surface. Common in metalworking and machining operations requiring precise countersinking
This carbide countersink features three flutes and a 1/2 in body diameter with a 1/4"-28 threaded shank. It is used to create a 90° chamfer around pre-drilled holes, allowing screw heads to sit flush with the workpiece surface. Common in metalworking and machining operations requiring precise countersinking
This carbide countersink features three flutes and a 90° angle, designed for creating conical recesses for flat-head screws. The 1/2 in body diameter and 1/4"-28 threaded shank enable secure mounting in compatible tool holders. Suitable for general metalworking and machining applications on materials such as steel and aluminum
This carbide countersink features three flutes and a 90° angle, designed for creating conical recesses for flat-head screws. The 1/2 in body diameter and 1/4"-28 threaded shank enable secure mounting in compatible tool holders. Suitable for general metalworking and machining applications on materials such as steel and aluminum
This carbide countersink features three flutes and a 1/2 in body diameter with a 1/4"-28 threaded shank. It is used to create conical recesses for flat-head screws and for deburring and chamfering holes in metalworking and machining applications
This carbide countersink features three flutes and a 1/2 in body diameter with a 1/4"-28 threaded shank. It is used to create conical recesses for flat-head screws and for deburring and chamfering holes in metalworking and machining applications
Carbide countersink with three flutes and a 1/4"-28 threaded shank. Body diameter is 1/2 in. Used to create conical recesses for flat-head screws in metalworking and machining applications
Carbide countersink with three flutes and a 1/4"-28 threaded shank. Body diameter is 1/2 in. Used to create conical recesses for flat-head screws in metalworking and machining applications
Three-flute countersink with a 90° angle, 1/2 in body diameter, and 1/4"-28 threaded shank. Made of carbide. Used in machining to create a conical recess for flat-head screws, ensuring flush seating in metal workpieces
Three-flute countersink with a 90° angle, 1/2 in body diameter, and 1/4"-28 threaded shank. Made of carbide. Used in machining to create a conical recess for flat-head screws, ensuring flush seating in metal workpieces