OEM Countersink: 90°
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle, a 1/2 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-186090
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, a 1/2 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and carries the manufacturer part number 421537.
Frequently Asked Questions
What is the APPROVED VENDOR 421537 countersink used for?
The APPROVED VENDOR 421537 is a 90° three-flute countersink used to create a conical recess for flat-head screws in metalworking and machining applications. Its carbide construction provides durability for use on ferrous and non-ferrous materials, ensuring clean, burr-free chamfers in production and maintenance environments.
What are the specifications of the APPROVED VENDOR 421537 countersink?
The APPROVED VENDOR 421537 countersink has a 90° angle, three flutes, a 1/2 in body diameter, and a 1/4"-28 threaded shank. It is made of carbide and carries manufacturer part number 421537. These specs make it suitable for precision countersinking in industrial drilling and deburring operations.
Where to buy the APPROVED VENDOR 421537 countersink worldwide?
3G Electric supplies the APPROVED VENDOR 421537 countersink worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time; we source and deliver this carbide countersink to any international destination.
How to select the correct threaded-shank countersink for a job?
To select the correct threaded-shank countersink, match the shank thread size (e.g., 1/4"-28) to your toolholder or drill chuck. Choose the body diameter (e.g., 1/2 in) based on the screw head size. For the APPROVED VENDOR 421537, the 90° angle suits standard flat-head screws, and carbide material is ideal for hard materials requiring long tool life.
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.
