7/3/1PCS HSS Step Drill Bit Sets Straight Groove Titanium Coated Cone Hole Cutter Auto Center Punch Spiral Twist Saw Drill Bit

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 titanium coating, more wear and oxidation resistance, not rust.
[Product use] High-speed steel 4241 material is suitable for iron plate, aluminum alloy, copper plate, wood board,



[Specification]: 
[Product name] 7PC pagoda drill serrated drill (3 step drills, 3 serrated drills and 1 positioning punch)

Drilling and reaming of plastics and other materials
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)

3PC Serrated Drill 3, 6, 8mm
One brass center punch

[Advantages]:
1. "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 pistol 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.

Note:
Please view the image when placing your order to know what to buy.
If you buy a single drill bit, we will send you a single drill bit, not a 7pcs/6pcs kit!
Please carefully check whether the product you purchased is correct!
We will deliver the goods correctly according to your order. If you have any questions after receiving the goods, please feel free to contact us.