Technical data sheet
MTB25N0440

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MTB25N0440

Solid carbide drill with 0.01 mm increments and without internal cooling holes for steel

Dimensions

d1h6d2h6l10/+1l20/+1
4.44.460.030.0

Properties

CoatingNo
Coolant holesNo
Point angle118°
Helix angle25°
Flutes2
StandardTUSA

Cutting parameters

MaterialDescriptionMachinabilityVcm/minfnmm/rev
P.0Long chipping Low Carbon SteelsRecommended10-200.03-0.06
P.1Short chipping Low Carbon SteelsRecommended10-200.03-0.06
P.2Medium and High Carbon SteelsRecommended10-200.03-0.06
P.3Alloy Steels, Tool Steels (N/mm² 600-850)Recommended10-200.03-0.06
P.4Alloy Steels, Tool Steels (N/mm² 850-1400)Partially recommended8-150.025-0.040
P.5Ferritic, Martensitic, PH SSPartially recommended8-150.025-0.040
P.6High Strength Ferritic, Martensitic, PH SSPartially recommended8-150.025-0.040
M.1Austenitic Stainless SteelPartially recommended5-150.020-0.035
M.2High Strength Austenitic SS, Cast SSPartially recommended5-150.020-0.035
M.3Duplex SSPartially recommended5-150.020-0.035
K.1Grey Cast IronPartially recommended20-400.03-0.06
K.2Low and Medium Strength CGI, Ductile IronsPartially recommended20-400.03-0.06
K.3High Strength Ductile and Austempered Ductile IronPartially recommended20-400.03-0.06
N.1Wrought AluminiumRecommended30-500.060-0.100
N.2Low Si Al Alloys and Magnesium Alloys Si<12%Recommended30-500.060-0.100
N.3High Si Al Alloys Si>12%Recommended30-500.060-0.100
N.4Copper, Brass, Zinc Based AlloysRecommended10-500.065-0.100
S.4Ti and Ti AlloysPartially recommended8-150.025-0.040
H.1Hardened Materials (HRC 44-48)Partially recommended8-150.060-0.100
H.2Hardened Materials (HRC 48-55)Partially recommended8-150.060-0.100
O.1Thermoplastic and thermosetting materialsRecommended30-500.060-0.100