XMEIFEITS Step Drill 6PCS HSS Steel T-itanium Step Drill Bit Set 4-12/20/32mm Metal Hole Cutter Wood Cone Core Drilling Hole Saw Tool Twist Saw Drill (Color : 4 12mm)

Before Use, Check the Power and Stiffness of the Machine Tool to Ensure That the Required Diameter of the Step Drill bit Can Be Used on the Machine Tool
Description:
[Material]:High-speed steel 4241.
[Handle]:Step drill is triangle round handle,prevent sliping.the saw and drill is a round handle.
[Surface treatment]:the gold is T-itanium coating,more wear and oxidation resistance,not rust.
[Specification]:
4-12 mm 5 Steps (4mm,6mm,8mm,10mm,12mm)
4-20 mm 9 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm)
4-32 mm 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm)
Saw drill:3mm,6mm,8mm.
[Advantages]:
1."X"shaped openings,drilling is not easy to slip.Higher precision,more sharp,burr-free drilling.
2,the 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 pistol drill and bench drill.
4,the hardness of the workpiece below the use of 25°below,such as iron,Alum-inums,PVC board,insulation board,wood,workpiece thickness 4mm.
[Packaging]:
6PCS Step Saw Drill Bits Set(with Box)/6PCS Step Saw Drill Bits Set(without Box)