OEM Countersink: 100°
The APPROVED VENDOR Countersink: 100° is a threaded-shank three-flute countersink with a 1/2 in body diameter and a 1/4"-28 shank thread size. It features a carbide construction and is identified by manufacturer part…
SKU 3G-OTH-186120
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The APPROVED VENDOR Countersink: 100° is a threaded-shank three-flute countersink with a 1/2 in body diameter and a 1/4"-28 shank thread size. It features a carbide construction and is identified by manufacturer part number 421557.
Frequently Asked Questions
What is the APPROVED VENDOR 100° countersink used for?
This three-flute countersink creates a 100° chamfer around a pre-drilled hole to seat flat-head screws flush with the surface. It is commonly used in metalworking and machining applications where precise countersinking is required, such as in aerospace, automotive, and general fabrication.
What are the specifications of the APPROVED VENDOR countersink 421557?
The APPROVED VENDOR countersink has a 1/2 in body diameter, a 1/4"-28 threaded shank, three flutes, and a 100° angle. It is made of carbide for durability and wear resistance. The manufacturer part number is 421557.
Where to buy the APPROVED VENDOR countersink 421557 worldwide?
3G Electric supplies the APPROVED VENDOR countersink 421557 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and a quote for your region.
How to select the correct countersink for a 1/4"-28 shank?
Ensure the countersink shank matches your tool holder's thread size, in this case 1/4"-28. The body diameter must be larger than the screw head you are countersinking. For a 100° countersink, use it with flat-head screws designed for a 100° angle. Carbide construction is ideal 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.
