OEM Countersink: 90°
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle. It features a 1/4" body diameter and a 1/4"-28 shank thread size, and is made of carbide (MPN 421544).
SKU 3G-OTH-186128
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle. It features a 1/4" body diameter and a 1/4"-28 shank thread size, and is made of carbide (MPN 421544).
Frequently Asked Questions
What is a 90° three-flute countersink used for?
A 90° three-flute countersink creates a conical recess in a workpiece to match the angle of a flat-head screw or bolt. It is commonly used in metalworking and machining to ensure fasteners sit flush with the surface, improving assembly fit and finish.
What are the specifications of the APPROVED VENDOR countersink 421544?
The APPROVED VENDOR countersink 421544 has a 90° angle, three flutes, a 1/4 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide for durability in hard materials. The shank is threaded for secure mounting in toolholders.
Where to buy the APPROVED VENDOR countersink 421544 worldwide?
3G Electric supplies the APPROVED VENDOR countersink 421544 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this carbide threaded-shank countersink.
How to select the correct countersink for a flat-head screw?
Select a countersink with the same angle as the screw head — 90° is standard for most flat-head screws. Match the body diameter to the screw head size and ensure the shank thread size fits your toolholder. Carbide tools like this APPROVED VENDOR model offer long life in abrasive materials.
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.
