Page 11 - Centerdrill Produktkatalog 2020 English

M3 - 2.7 Surface without collar

Centerdrill 2.7 short-flat Centerdrill 2.7 long-flat

Order no.: 3650270 Order no.: 3550270
Product discription: 2.7 short-flat Product discription: 2.7 long-flat

Thread type: DIN ISO 13 / DIN 371 Thread type: DIN ISO 13 / DIN 371
Thread size: M3x0,5 Thread size: M3x0,5
Centerdrill core hole: 2,7mm Centerdrill core hole: 2,7mm

Working part L1: 6,7mm Working part L1: 8,0mm
Shank-ø: 6,0mm h6 Shank-ø: 6,0mm h6

Surface workpiece: flat / plan, without collar Surface workpiece: flat / plan, without collar
Max. Material thickness: 1,7mm Max. Material thickness: 2,7mm
Suitable for materials: Steel, Stainless steel, Suitable for materials: Steel, Stainless steel, Brass,

Brass, Aluminum, Copper Aluminum, Copper

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Reference values for M3 in 1-2mm material thickness

Material

Process data Stainless steel Steel Copper Brass Aluminum
RPM Centerdrill 2600 3000 4500 4500 4500

RPM Centertap 370-430 1300-1500 1900-2100 1900-2100 1900-2100

kW-Power + 0,9 0,7 0,7 0,7 0,7
Feed rate (mm/min)* + 50-150 50-150 50-150 50-150 50-150

• *While removing the collar, the feed rate should be increased at the end of the process, approx. 900 mm/min.
• These are recommended values and they may vary significantly, depending on the type of material, material
thickness, lubrication, etc. For thread forming, we recommend our cutting oil. If you use an emulsion, it should contain
at least 8-10% grease.
• CNC-data can be provided on request.

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