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Center Drills, HSS, Set of 5 (Numbers 1-5)

Center Drills, HSS, Set of 5 (Numbers 1-5) - Main image
$6.27 $9.95 In stock

This set includes five different sizes of combined drills and countersinks, commonly called center drills. They are used to produce a center hole on a workpiece for turning between centers.

Center drills are also used to start drilled holes. Because they are very stiff, they don't have a tendency to wander.

The set is high speed steel and includes sizes 1, 2, 3, 4, and 5. These are 60-degree center drills with a right-hand cutting direction. Each center drill countersink is made of ground high speed steel for good wear resistance with a hardness rating of Rc 58 - 60.

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Customer Reviews (5.0 / 5 · 5 reviews)

Ruby ★★★★★

After struggling with a dull set for years, these HSS center drills finally let me make clean starter holes without any chatter. The number 4 size was a perfect fit for my small lathe project, and the countersink portion leaves a nice tapered seat.

John B. ★★★★★

The number 2 center drill cut cleanly through a piece of mild steel without any chatter, and the 60-degree countersink left a perfectly smooth taper.

Madison ★★★★★

I needed precise centers for my lathe projects, and these HSS drills cut smoothly through steel without any chatter. The set covers all five common sizes, making it easy to find the right one for any workpiece.