Page 41 - Centerdrill Produktkatalog 2020 English

G3/8“ - 15.9 Surface without collar

Centerdrill 15.9 long Centerdrill 15.9 short-flat Centerdrill 15.9 long-flat

Order no.: 3651590 Order no.: 3551590
Product discription: 15.9 short-flat Product discription: 15.9 long-flat

Thread type: DIN EN ISO 228/ DIN 2189 Thread type: DIN EN ISO 228/ DIN 2189
Thread size: G 3/8“ x 19 Thread size: G 3/8“ x 19
Centerdrill core hole: 15,9mm Centerdrill core hole: 15,9mm

Working part L1: 30,3mm Working part L1: 37,5mm
Shank-ø: 16,0mm h6 Shank-ø: 16,0mm h6

Surface workpiece: flat / plan, without collar Surface workpiece: flat / plan, without collar
Max. Material thickness: 3,5mm Max. Material thickness: 8,0mm
Suitable for materials: Steel, Stainless steel, Brass, Suitable for materials: Steel, Stainless steel, Brass,

Aluminum, Copper Aluminum, Copper

More process data can be found online Check out flow drilling videos

Reference values for G 3/8“ in 2mm Material thickness

Material

Process data Stainless steel Steel Copper Brass Aluminum
RPM Centerdrill 1200 1400 2100 2100 2100

RPM Centertap 90-110 200-280 300-380 300-380 300-380

kW-Power + 3,4 2,6 2,6 2,6 2,6
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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