Step Drills

# IMPA Model Size mm Max Hole Depth
1 633801 ST-1 4, 5, 6, 7, 8, 9, 10, 11, 12 3 mm
2 633802 ST-2 6, 8, 10, 12, 14, 16, 18 5 mm
3 633803 ST-3 6, 9, 11, 13, 15,17, 19,21, 24, 27, 30, 33 3 mm
4 633804 ST-4 6, 9, 12, 15, 18, 21, 24, 27, 30, 32, 34, 36, 38, 40, 42 3 mm

Made of heat treated steel and can create various hole sizes by single drill in steel, stainless steel, plastic or wood.

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