Spiral Flute Taps:

These taps are used for threading blind holes in aluminum, brass, and softer steel materials, and when chip clearing can be an issue. The flute geometry draws the chips upward, out of the hole.

Spiral Point Taps:

These taps are used for treading through holes. The flute geometry is designed to push the chips ahead of the cutting action, down into the hole, which prevents chips from loading up the flutes.

Jobber-Length Tap Drills:

These drills feature a long length compared to their diameter, and offer a good balance of strength and accuracy for drilling in a wide range of materials.

These Cobalt (M42) drills are harder than high-speed steel (HSS), and provide better wear resistance and higher hardness. The 135° split point is self-centering, and designed to drill hard, high-strength, tough materials. The TiN (Titanium Nitride) coating increases hardness and heat resistance, allowing these drills to run at higher speeds and feeds than HSS