[Special Note]:
HRC (high breaking capacity);
Our products are divided into two hardnesses, HRC62 and HRC67.
The first material is HRC62 (marked as A-B-C on the picture), drilled plastic, wood, and aluminum are all right.
But if you need to drill steel or iron plates, or want a longer tool life, we recommend that you choose the second material HRC67 (D-E-F-G is indicated on the picture).
[Specification]:
4 - 12mm 5 Steps (4-6-8-10-12mm)
4 - 20mm 9 Steps (4-6-8-10-12-14-16-18-20mm)
4 - 32 mm 15 Steps (4-6-8-10-12-14-16-18-20-22-24-26-28-30-32mm)
Saw drill: 3mm, 6mm, 8mm.
Note: In the Type C and G, 4-12 is 9 Steps (4-6-8-10-12-14-16-18-20mm)
[Advantage]:
1. Step drill is triangle round handle or hexagonal handle, prevent sliping. The saw and drill is a round handle.
2. "X" shaped openings, drilling is not easy to slip. Higher precision, more sharp, burr-free drilling.
3. The gold is titanium coating, more wear and oxidation resistance, not rust.
4, The unique step structure, a drill can drill a variety of sizes of the aperture. You can deburring, chamfering, punching elliptical hole.
5. The hardness of the workpiece below the use of 25 ° below, such as iron, aluminum, PVC board, insulation board, wood, workpiece thickness 4mm.
6. Suitable for installation in the pistol drill and bench drill.
[Packaging]:
As shown in the picture, there are ordinary plastic bags, blue cloth bags, a single white pull-out box, and a beautiful red box.
No-delivery refund
![[Cobalt Step Drill Bit Set] 5pcs Bearing Steel Cobalt Step Drill Bit Set - Multi-Hole Metal and Wood Drilling Tools with Aluminum Case](https://img.joomcdn.net/c7f164b6c968ff0998b001d373cd1cc9286f62e1_100_100.jpeg)
