OEM APPROVED VENDOR Carbide Threaded-Shank Three-Flute Countersink
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 is made of carbide and is identified by manufacturer part number 421554.
SKU 3G-OTH-186137
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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 is made of carbide and is identified by manufacturer part number 421554.
Frequently Asked Questions
What is the APPROVED VENDOR 100° countersink used for?
This carbide three-flute countersink creates a 100° chamfer around a pre-drilled hole, allowing a flat-head screw to sit flush with the workpiece surface. It is commonly used in metalworking, machining, and fabrication applications where precise countersinking is required.
What are the specifications of the APPROVED VENDOR countersink 421554?
The APPROVED VENDOR countersink model 421554 has a 100° included angle, three flutes, a 1/2 in body diameter, and a 1/4"-28 threaded shank. It is made from carbide for durability and is designed for use in industrial drilling and countersinking operations.
Where to buy the APPROVED VENDOR countersink 421554 worldwide?
3G Electric supplies the APPROVED VENDOR countersink 421554 to customers worldwide. As a global industrial equipment 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 shank?
To select the correct countersink, match the shank thread size to your tool holder—here 1/4"-28. Ensure the body diameter (1/2 in) is larger than the screw head. The 100° angle suits standard flat-head screws. Carbide material offers longer tool life in 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.