OEM Countersink: 90°
The APPROVED VENDOR Countersink is a threaded-shank three-flute countersink with a 90° angle, a 1/2 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and identified by manufacturer part number…
SKU 3G-OTH-186094
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 is a threaded-shank three-flute countersink with a 90° angle, a 1/2 in body diameter, and a 1/4"-28 shank thread size. It is made of carbide and identified by manufacturer part number 421539.
Frequently Asked Questions
What is the APPROVED VENDOR 421539 countersink used for?
The APPROVED VENDOR 421539 countersink is used to create a 90° conical recess in a workpiece, allowing a flat-head screw to sit flush with the surface. It is commonly applied in metalworking and machining operations where precise chamfering or deburring of holes is required.
What are the specifications of the APPROVED VENDOR 421539 countersink?
The APPROVED VENDOR 421539 is a 90° threaded-shank three-flute countersink with a 1/2 in body diameter and a 1/4"-28 shank thread size. It is made of carbide and has manufacturer part number 421539. The three-flute design provides smooth cutting and reduced chatter.
Where to buy the APPROVED VENDOR 421539 countersink worldwide?
You can source the APPROVED VENDOR 421539 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 threaded-shank countersink for a job?
To select the correct threaded-shank countersink, match the shank thread size (e.g., 1/4"-28) to your tool holder or adapter. Choose the body diameter (e.g., 1/2 in) based on the screw head size. The 90° angle is standard for flat-head screws. Carbide material 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.
