Swiss engineering, high precision

TA303B0120

Solid carbide micro twist drill with back chamfer, coated

d1h5d2h6d30/0.0025l10/+0.5l20/+0.5l3+/-0.1
1.23.00.850.07.23.6
CoatingYes
Coolant holesNo
Point angle130°
Helix angle25°
Flutes2
StandardTUSA
Cut directionRight-hand
MaterialDescriptionMachinabilityVcm/minfnmm/rev
P.0Long chipping Low Carbon SteelsRecommended40-700.015-0.023
P.1Short chipping Low Carbon SteelsRecommended40-700.015-0.023
P.2Medium and High Carbon SteelsRecommended40-700.015-0.023
P.3Alloy Steels, Tool Steels (N/mm² 600-850)Recommended30-600.015-0.023
P.4Alloy Steels, Tool Steels (N/mm² 850-1400)Partially recommended25-400.015-0.023
P.5Ferritic, Martensitic, PH SSRecommended25-400.015-0.023
P.6High Strength Ferritic, Martensitic, PH SSRecommended25-400.015-0.023
M.1Austenitic Stainless SteelRecommended25-400.015-0.023
M.2High Strength Austenitic SS, Cast SSRecommended25-400.015-0.023
M.3Duplex SSRecommended25-400.015-0.023
K.1Grey Cast IronRecommended25-400.015-0.023
K.2Low and Medium Strength CGI, Ductile IronsRecommended25-400.015-0.023
K.3High Strength Ductile and Austempered Ductile IronRecommended25-400.015-0.023
N.1Wrought AluminiumRecommended80-1500.020-0-038
N.2Low Si Al Alloys and Magnesium Alloys Si<12%Recommended80-1500.020-0-038
N.3High Si Al Alloys Si>12%Recommended80-1500.020-0-038
N.4Copper, Brass, Zinc Based AlloysRecommended40-1000.015-0.032
O.1Thermoplastic and thermosetting materialsRecommended80-1500.020-0-038
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