OEM Countersink: 82°
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with an 82° angle. It features a 5/8 in body diameter, a 1/4"-28 shank thread size, and is made of carbide (MPN 421521).
SKU 3G-OTH-186117
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
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Product Description
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with an 82° angle. It features a 5/8 in body diameter, a 1/4"-28 shank thread size, and is made of carbide (MPN 421521).
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 421521 countersink used for?
The APPROVED VENDOR 421521 countersink is used to create a conical recess for flat-head screws in metalworking and machining applications. Its 82° angle and three-flute carbide design provide clean, precise countersinking in hard materials, commonly in aerospace, automotive, and general manufacturing.
What are the specifications of the APPROVED VENDOR 421521 countersink?
The APPROVED VENDOR 421521 countersink has an 82° angle, three flutes, a 5/8 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide, with manufacturer part number 421521. This threaded-shank design ensures secure mounting in compatible tool holders.
Where to buy the APPROVED VENDOR 421521 countersink worldwide?
You can source the APPROVED VENDOR 421521 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 on this carbide countersink.
How to select the correct countersink for a 1/4"-28 shank?
To select a countersink for a 1/4"-28 shank, ensure the shank thread size matches your tool holder. The APPROVED VENDOR 421521 features a 1/4"-28 threaded shank and a 5/8 in body diameter. For hard materials, choose carbide; for softer materials, high-speed steel may suffice. Always verify the angle matches your screw head.
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.
