Drill Metal

 

A metal drill has two sharp cutting edges at the tip and is usually made of HSS, which is the short form for high-speed steel. A metal drill is suitable for various metals such as iron, steel, aluminum, brass, copper, etc.. It can also be used to drill soft materials such as plastic or wood.

 

Metal Drill
Metal Drill

 

 

Metal Drill Features:

 

Tip:              conical

 

Cutting:       two sharp cutting edges

 

 

 

Drill Speed

Drill speedThe correct drill speed is very important to keep the wear on the drill low and to get the best possible drilling result, which should be the main goal. In order to determine the correct speed, you have to know the material you want to drill into and the diameter of the drill you want to drill with.

 

The basic principle is:

 

Larger Drill           =>     Lower Speed

Harder Material    =>     Lower Speed

 

 

In order to achieve the best possible drilling result in metal, it is advisable to use coolant. Drilling heats up the drill hole and the drill very quickly, if you see that the drill or the metal you are drilling into turns blue, it is already too late. The drill can break and the hole can deform.

 

Tip: In case of doubt, drill at low speed and little pressure. At the same time, always cool sufficiently with coolant.

 

Metal Drill Speed Chart

The speed table for different metals gives you the exact speed required for the drill diameter used.

 

  Stainless Stell Steel Brass Aluminium
Drill Diameter Ø: U/min. U/min. U/min. U/min.
2 mm 2.000 2.600 4.000 5.000
3 mm 1.650 2.200 3.500 4.500
4 mm 1.250 1.800 3.100 4.000
5 mm 1.000 1.500 2.750 3.500
6 mm 800 1.250 2.400 3.050
7 mm 660 1.060 2.100 2.650
8 mm 560 900 1.800 2.330
9 mm 490 770 1.540 2.000
10 mm 430 660 1.300 1.730
11 mm 375 580 1.080 1.480
12 mm 330 510 860 1.250
13 mm 300 450 700 1.050
14 mm 270 400 550 870
15 mm 250 350 450 730
16 mm 220 310 380 610
18 mm 200 270 330 510
20 mm 185 250 300 420
25 mm 170 240 280 350
30 mm 160 230 260 280

* All information without guarantee.