Max. wall thickness

Max. material thickness

The standard Centerdrills are suitable for material thicknesses from 0.8 – 12mm. The maximum wall thickness is depending on the thread size and on the Centerdrill tool type. In the following table you will find information regarding the wall thickness for each Centerdrill type combined with each thread size and additionally you will find the length of working part L1 and the shank diameters of the Centerdrill tools.

Tip:
Especially for small profiles / applications it could be very interesting to know the length of working part L1. Please compare the diameter of your profile with the length of working part L1. This way, you can prevent that the tool does not abuts on the opposite side of the profile.

Special tools for everybody:
Special tools are a not inconsiderable part of our daily business. Should your application be excluded by this data, please do not hesitate to contact us so that we can develop the best solution, this means a special tool, for your application. At Centerdrill we have 20 years of experience helping customers successfully achieve their production goals!

Centerdrill Technig

Indication in mm

		up to material thickness				working length
Thread / Pitch	Centerdrill diameter	short	long	short/flat	long/flat	L1 short	L1 long	Collet Ø

Metric ISO DIN 13

M2 x 0,4	1,8	1,3	2,2	1,7	2,7	5,6	7,6	6,0
M3 x 0,5	2,7	1,3	2,2	1,7	2,7	6,7	8,7	6,0
M4 x 0,7	3,7	1,3	2,3	1,7	2,7	8,1	10,3	6,0
M5 x 0,8	4,5	1,3	2,4	1,7	2,8	9,2	11,8	6,0
M6 x 1	5,4	1,3	2,7	1,7	3	10,5	13,5	8,0
M8 x 1,25	7,3	1,5	3,5	2,0	4,5	13,5	18,1	8,0
M10 x 1,5	9,0	2,0	4,3	2,5	5,2	16,8	22,5	10,0
M12 x 1,75	10,9	2,4	4,9	2,8	5,9	19,8	26,4	12,0
M14 x 2	13,0	2,4	5,3	3,0	7,0	23,5	31,3	14,0
M16 x 2	14,8	3,0	6,4	3,5	7,5	26,9	35,4	16,0
M20 x 2,5	18,7	3,7	8,0	4,5	9,0	34,1	44,3	18,0

BSP
G1/8'' x 28	9,2	2,0	4,3	2,5	5,2	16,8	22,5	10,0
G1/4'' x 19	12,4	2,3	5,5	3,0	6,5	22,4	29,8	14,0
G3/8'' x 19	15,9	3,3	6,9	3,5	8,0	28,9	37,9	16,0
G1/2'' x 14	19,9	4,0	8,5	4,5	9,0	36,3	47,0	18,0
G3/4'' x 14	25,4	4,5	10,6	5,0	11	46,4	59,6	20,0

Please note:

To process stainless steel from M8 –M12, we recommend using a centerdrill core hole diameter of +0.1mm (i. e. instead of 7.3mm a centerdrill 7,4 mm).

Centerdrill Explorer – makes flow drilling easier!

All in one – Tool finder and process database for your application!

Our Centerdrill Explorer will show you the right RPM, feed rate and the required power for your machine, for a lot of materials und material thicknesses. All data available for the flow drilling process as well as for the thread forming process.

For example these data include specifications for following materials: stainless steel, steel, aluminum, copper and brass and for the material thicknesses between 0,8-12mm.