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. "X" shaped openings, drilling is not easy to slip. Higher precision, more sharp, burr-free drilling.
2, The unique step structure, a drill can drill a variety of sizes of the aperture. You can deburring, chamfering, punching elliptical hole.
3, Suitable for installation in the drill and bench drill.
4, The hardness of the workpiece below the use of 25 ° below, such as iron, aluminum, PVC board, insulation board, wood, workpiece thickness 4mm.
Material: high speed steel
colour: gold
Package Contents:
7 x HSS Step Drill Bit Sets
Only the above package content, other products are not included.
Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm
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