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Metric Size Range Includes sizes M3 (3.4mm pilot, 6mm cutting dia., 7/32" shank, 3" length) to M12 (14mm pilot, 20mm cutting dia., 5/8" shank, 7-1/2" length).
High-Speed Steel Construction Crafted from durable HSS for superior longevity and performance in demanding conditions.
Three-Flute Design Enhances chip removal and finish quality with a straight shank for universal machine compatibility.
Bright Finish Offers added material strength and resistance to corrosion, facilitating smoother cutting actions.
Versatile Applications Ideal for creating clean, precise countersinks for cap screws in metalworking projects.
High Speed Steel. Straight Shank. Metric Set(7 Pcs/Set) M3, M4, M5, M6, M8, M10, & M12
Bright Finished. Premium Quality
Cap screw counterbores are tools that are used to create a recess in a workpiece for the head of a cap screw. You might use a cap screw counterbore when you need to attach a component to your workpiece using cap screws, and the component has a thickness that is greater than the length of the cap screw.
Another reason you might use a cap screw counterbore is if you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece. A cap screw counterbore allows you to create a recess in the workpiece that is sized to fit the head of the cap screw, giving the screw a flush or countersunk appearance.
Overall, cap screw counterbores can be useful when you need to attach components to a workpiece using cap screws, or when you want to create a flush or countersunk appearance for the heads of the cap screws on your workpiece.
