OEM APPROVED VENDOR Threaded-Shank Three-Flute Countersink
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with an 82° angle, 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…
SKU 3G-OTH-186076
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 an 82° angle, 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 421507.
Frequently Asked Questions
What is the APPROVED VENDOR 421507 countersink used for?
The APPROVED VENDOR 421507 is a threaded-shank three-flute countersink used to create an 82° chamfer around a pre-drilled hole for flat-head screws. It is commonly applied in metalworking and machining operations where a precise, burr-free finish is required on ferrous and non-ferrous materials.
What are the specifications of the APPROVED VENDOR 421507 countersink?
The APPROVED VENDOR 421507 countersink has a 7/16 in body diameter, a 1/4"-28 shank thread size, and an 82° included angle. It features three flutes and is made from carbide. The manufacturer part number is 421507.
Where to buy the APPROVED VENDOR 421507 countersink worldwide?
You can source the APPROVED VENDOR 421507 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.
How to select the correct countersink for a 1/4"-28 threaded shank?
To select the correct countersink for a 1/4"-28 threaded shank, ensure the shank thread size matches your tool holder. The APPROVED VENDOR 421507 is designed for this thread size. Also verify the body diameter (7/16 in) and angle (82°) match your fastener requirements. Carbide construction offers durability for hard materials.
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.