Technical Information for Tiny Tools A\ Recommended Grades, Cutting Speeds Vc [m/min] Recommended Feed f [mm/rev] and Max Depth [mm] Max Depth Material Hardness Vc [m/min]GroupMaterialBrinell HBTTIM45TTIS30N400 Material Material Hardness Feed [mm/rev] [mm/rev]GroupBrinell HBBoringGroovingBoring Low Carbon (C=0.1-0.25%) 125 50-120 140-200 Low Carbon (C=0.1-0.25%) 125 0.05 0.03 0.40 Unalloyed Steel Medium Carbon (C=0.25-0.55%) 150 40-100 120-180 30-80 Unalloyed Steel Medium Carbon (C=0.25-0.55%) 150 0.04 0.02 0.40 High Carbon (C=0.55-0.85%) 170 30-80 110-180 High Carbon (C=0.55-0.85%) 170 0.03 0.01 0.40 Low Alloy Steel Non Hardened 180 50-70 100-155 Non Hardened 180 0.04 0.02 0.30Low Alloy Steel (alloying elements< 5%) Hardened 275 40- 60 90-145 25- 50 (alloying elements< 5%) Hardened 275 0.04 0.01 0.30 Hardened 350 30-50 80-135 Hardened 350 0.03 0.01 0.30 Steel Annealed 200 30-50 65 -115 Steel High Alloy Steel Annealed 200 0.04 0.02 0.15 Hardened 325 25 -40 50-100Cast Steel 25- 50 (alloying elements> 5%) Hardened 325 0.03 0.01 0.15 Low Alloy (alloying elements < 5%) 200 30-50 30- 50 Low Alloy (alloying elements <5%) 200 0.04 0.02 0.15 Cast Steel High Alloy (alloying elements >5%) 225 25 -40 25 -40 High Alloy (alloying elements > 5%) 225 0.04 0.02 0.15 Stainless Non Hardened 200 60-100 80-120 Stainless Steel Non Hardened 200 0.04 0.01 0.20 SteelFerritic Hardened 330 40-60 55 -95 Ferritic Hardened 330 0.03 0.01 0.15 Stainless Austenitic 180 50-90 60-100 Stainless Steel Austenitic 180 0.04 0.01 0.20 SteelAustenitic Super Austenitic 200 40-60 50-90 30-60 Austenitic Super Austenitic 200 0.04 0.01 0.15 Stainless Stainless Steel Non Hardened 200 40-60 60-80 Stainless Stainless Steel Non Hardened 200 0.04 0.02 0.20 steel Cast Ferritic Hardened 330 30-50 45 - 65 steel Cast Ferritic Hardened 330 0.03 0.01 0.15 Stainless Steel Austenitic 200 40-60 50-70 Stainless Steel Austenitic 200 0.04 0.02 0.20 Cast Austenitic Hardened 330 30-50 40-60 Cast Austenitic Hardened 330 0.03 0.01 0.15 Ferritic (short chips) 130 50-70 60-80 Ferritic (short chips) 130 0.02 0.02 0.25 Malleable Cast Iron 20- 50 Malleable Cast Iron K Grey Cast Iron Pearlitic (long chips)Low Tensile Strength 230 50-70 60-8018050-7060-8030-80 K Pearlitic (long chips)Low Tensile StrengthGrey Cast Iron230 0.01 0.01 0.251800.020.020.40 High Tensile Strength 260 40-60 40-70 High Tensile Strength 260 0.01 0.01 0.40 Cast iron Cast iron Ferritic 160 50-70 60-80 Ferritic 160 0.02 0.02 0.40 Nodular Sg Iron 30-80 Nodular Sg Iron Pearlitic 260 60-80 70-90 Pearlitic 260 0.01 0.01 0.40 Non Aging 60 100-300 80-240 Non Aging 60 0.03 0.03 0.50 N Aluminum Alloys Wrought Aged 60-120100100-150100-170N Aluminum Alloys Wrought Aged 100 0.03 0.03 0.50 Cast 75 100-150 100-150 Cast 75 0.03 0.03 0.50 (K) Aluminum Alloys Cast 8i Aged 90 60-100 60-100 50-90 (K) Aluminum Alloys Cast & Aged 90 0.03 0.03 0.50 Non- Aluminum Alloys Cast Si 13-22% 130 100-150 100-150 Non- Aluminum Alloys Cast Si 13-22% 130 0.02 0.02 0.50 Ferrous Ferrous material Copper and Copper Alloys Brass 90 60-100 80-200 30-70 material Copper and Copper Alloys Brass 90 0.03 0.03 0.50 Bronze and Non Leaded Copper 100 60-100 80-200 Bronze and Non Leaded Copper 100 0.03 0.03 0.50 Annealed (iron based) 200 25-45 25 -45 Annealed (iron based) 200 0.04 0.01 0.20 S Aged (iron based)High Temperature AlloysAnnealed (nickel or cobalt based)28025020-3020-30 15-4015-2015 - 20S Aged (iron based)High Temperature AlloysAnnealed (nickel or cobalt based)2802500.03 0.01 0.150.010.010.15 Aged (nickel or cobalt based) 350 10-15 10-15 Aged (nickel or cobalt based) 350 0.01 0.01 0.15 Heat Heat Resistantmaterial Titanium Alloys Pure 99.5 Ti 400Rm 60-100 60-100 10-301050Rm40-5040- 50 Resistantmaterial Titanium Alloys Pure 99.5 Tia+p alloys 400Rm 0.02 0.02 0.151050Rm0.020.020.15 H Extra Hard Steel Hardened & Tempered 45 -50HRC 20-45 20-40 15-40 H Extra Hard Steel Hardened & Tempered 45 - 50HRC 0.01 0.01 0.05 Hardened 51-55HRC 20-40 20-40 15-40 Hardened 51- 55HRC 0.01 0.01 0.05 Material Material 029 030