OEM Countersink: 90°
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle. It features a 7/16 in body diameter and a 1/4"-28 shank thread size, and is made of carbide (MPN 421527).
SKU 3G-OTH-186074
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle. It features a 7/16 in body diameter and a 1/4"-28 shank thread size, and is made of carbide (MPN 421527).
Frequently Asked Questions
What is the APPROVED VENDOR 421527 countersink used for?
The APPROVED VENDOR 421527 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.
What are the specifications of the APPROVED VENDOR 421527 countersink?
The APPROVED VENDOR 421527 is a 90° three-flute countersink with a 7/16 in body diameter and a 1/4"-28 shank thread size. It is made of carbide, has a 1/4"-28 shank, and is manufactured under part number 421527.
Where to buy the APPROVED VENDOR 421527 countersink worldwide?
3G Electric supplies the APPROVED VENDOR 421527 countersink worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the correct countersink for a 1/4"-28 threaded shank?
To select a countersink for a 1/4"-28 threaded shank, ensure the shank thread size matches your toolholder. The APPROVED VENDOR 421527 has a 1/4"-28 shank and a 7/16 in body diameter. Match the body diameter to the screw head size and choose a 90° angle for standard flat-head screws.
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.
