Economic Step Drill

Economic Step Drill

Straight Flute Step Drill, HSS
Straight Flute Step Drill commonly used on sheet metal and in general construction. Most commonly used on soft materials, such as plywood, particle board, drywall, acrylic, and laminate. So it is ideal for use in electrical work where thin steel, aluminum or plastic boxes and chassis are encountered. It can also debur holes left by other bits. However, the straight flute is poor at chip ejection, and can cause a burr to be formed on the exit side of the hole.
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Professional spiral flute Step Drill

Professional Step Drill

Spiral Flute Step Drill , CBN ground, HSS
Spiral Flute Step Drill are designed to drill perfectly round holes in sheet metals of an thickness up to 4mm. The transition from one step to the next perfectly deburrs the previously drilled hole. Step drills are therefore a drilling and deburring tool combination. Due to CBN ground, the cutting behavior is outstanding.
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