OEM Countersink: 100°
The APPROVED VENDOR Countersink: 100° is a threaded-shank three-flute countersink with a 7/16 in body diameter and a 1/4"-28 shank thread size. It is made of carbide and is identified by manufacturer part number 421551.
SKU 3G-OTH-186129
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: 100° is a threaded-shank three-flute countersink with a 7/16 in body diameter and a 1/4"-28 shank thread size. It is made of carbide and is identified by manufacturer part number 421551.
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 421551 countersink used for?
The APPROVED VENDOR 421551 is a 100° three-flute countersink used to create a conical recess for flat-head screws in metalworking. Its carbide construction suits hard 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 421551 countersink?
The APPROVED VENDOR 421551 countersink has a 7/16 in body diameter, 1/4"-28 shank thread size, three flutes, and a 100° included angle. It is made of carbide and is identified by manufacturer part number 421551. This threaded-shank design provides stable, repeatable countersinking in production environments.
Where to buy the APPROVED VENDOR 421551 countersink worldwide?
3G Electric supplies the APPROVED VENDOR 421551 countersink worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this carbide three-flute countersink to your facility. Contact us for availability and lead time on this threaded-shank tool.
How to select the correct countersink for a 1/4"-28 threaded shank?
To select a countersink for a 1/4"-28 threaded shank, match the shank thread size exactly to your toolholder. The APPROVED VENDOR 421551 offers a 7/16 in body diameter and 100° angle, ideal for flat-head screws. Ensure the flute count (three) matches your material and finish requirements for chip evacuation.
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.
