Page 47 - Centerdrill Produktkatalog 2020 English
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M3 M4
Centertap M3 TIN without lubrication flutes Centertap M4 TIN without lubrication flutes
Order no.: 390M03TIN Order no.: 390M04TIN
Product discription: Centertap M3 Product discription: Centertap M4
Thread type: Metric DIN 371 Thread type: Metric DIN 371
Thread size: M3 Thread size: M4
Pitch: 0,5 Pitch: 0,7
Toleranz: 6HX Toleranz: 6HX
Lubrication flutes: no Lubrication flutes: no
Coating: TIN Coating: TIN
Material: HSS-E Material: HSS-E
Shank-ø: 3,5mm Shank-ø: 4,5mm
Square wrench size: 2,7mm Square wrench size: 3,4mm
For Centerdrill core hole: 2,7mm For Centerdrill core hole: 3,7mm
Our oils on page 61
Reference values for M3 in 2mm Reference values for M4 in 2mm
Material Centertap RPM Material Centertap RPM
Stainless steel 370-430 Stainless steel 260-320
Steel 1300-1500 Steel 950-1100
Copper 1900-2100 Copper 1400-1600
Brass 1900-2100 Brass 1400-1600
Aluminum 1900-2100 Aluminum 1400-1600
These are recommended values and they may vary significantly, These are recommended values and they may vary significantly,
depending on the type of material, material thickness, lubrication, etc. depending on the type of material, material thickness, lubrication, etc.
Emulsions must contain at least 8-10% grease. Emulsions must contain at least 8-10% grease.
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