Page 45 - Centerdrill Produktkatalog 2020 English

G3/4“ - 25.4 Surface without collar

Centerdrill 25.4 long Centerdrill 25.4 short-flat Centerdrill 25.4 long-flat

Order no.: 3652540 Order no.: 3552540
Product discription: 25.4 short-flat Product discription: 25.4 long-flat

Thread type: DIN EN ISO 228/ DIN 2189 Thread type: DIN EN ISO 228/ DIN 2189
Thread size: G 3/4“ x 14 Thread size: G 3/4“ x 14
Centerdrill core hole: 25,4mm Centerdrill core hole: 25,4mm

Working part L1: 46,6mm Working part L1: 59,6mm
Shank-ø: 20,0mm h6 Shank-ø: 20,0mm h6

Surface workpiece: flat / plan, without collar Surface workpiece: flat / plan, without collar
Max. Material thickness: 5,0mm Max. Material thickness: 11,0mm
Suitable for materials: Steel, Stainless steel, Suitable for materials: Steel, Stainless steel,

Brass, Aluminum, Copper Brass, Aluminum, Copper

Also available in the Beginner Set on page 56-59

Reference values for G 3/4“ in 2mm Material thickness

Material

Process data Stainless steel Steel Copper Brass Aluminum
RPM Centerdrill 850 1000 1500 1500 1500

RPM Centertap 50-70 100-180 160-240 160-240 160-240

kW-Power + 4,9 3,8 3,8 3,8 3,8
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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