Page 39 - Centerdrill Produktkatalog 2020 English

G1/4“ - 12.4 Surface without collar

Centerdrill 12.4 long Centerdrill 12.4 short-flat Centerdrill 12.4 long-flat

Order no.: 3651240 Order no.: 3551240
Product discription: 12.4 short-flat Product discription: 12.4 long-flat

Thread type: DIN EN ISO 228/ DIN 2189 Thread type: DIN EN ISO 228/ DIN 2189
Thread size: G 1/4“ x 19 Thread size: G 1/4“ x 19
Centerdrill core hole: 12,4mm Centerdrill core hole: 12,4mm

Working part L1: 22,8mm Working part L1: 30,0mm
Shank-ø: 14,0mm h6 Shank-ø: 14,0mm h6

Surface workpiece: flat / plan, without collar Surface workpiece: flat / plan, without collar
Max. Material thickness: 3,0mm Max. Material thickness: 6,5mm
Suitable for materials: Steel, Stainless steel, Brass, Suitable for materials: Steel, Stainless steel,

Aluminum, Copper Brass, Aluminum, Copper

Order hotline
+49 (0) 6198 / 58 58 97

Reference values for G 1/4“ in 2mm Material thickness

Material

Process data Stainless steel Steel Copper Brass Aluminum
RPM Centerdrill 1400 1600 2400 2400 2400

RPM Centertap 110-140 280-360 380-480 380-480 380-480

kW-Power + 2,7 2,1 2,1 2,1 2,1
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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