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 is identified by manufacturer part…
SKU 3G-OTH-186125
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
Need installation or engineering help?
Ask a question
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 is identified by manufacturer part number 421531.
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 421531 countersink used for?
The APPROVED VENDOR 421531 is a 90° three-flute countersink used to create a conical recess for flat-head screws in metalworking and machining applications. Its carbide construction suits hardened materials, and the 1/4"-28 threaded shank allows secure mounting in toolholders for precision deburring and chamfering.
What are the specifications of the APPROVED VENDOR 421531 countersink?
The APPROVED VENDOR 421531 countersink has a 90° angle, 3 flutes, a 1/2 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and is identified by manufacturer part number 421531. The threaded shank enables direct attachment to compatible toolholders without a separate arbor.
Where to buy the APPROVED VENDOR 421531 countersink worldwide?
3G Electric supplies the APPROVED VENDOR 421531 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 countersink for a 90° flat-head screw?
Select a countersink with a 90° angle to match standard flat-head screws. The body diameter must exceed the screw head size, and the shank must fit your toolholder—the APPROVED VENDOR 421531 uses a 1/4"-28 threaded shank. Carbide is recommended for hard materials; ensure flute count matches your deburring speed requirements.
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.
