Technical Information for Turning Tiny Tool Technical Information for Turning Tiny Tool H Machining Type Recommended Grade & Their Applications Grade Application Type Sample TTIP 30 P30-P50 K25-K40, General use carbide grade for tiny toollow cutting speed, Tin coated TTIM45 P20-P30 K 20-K30, General use carbide grade for tiny toolmedium to high cutting speed, TiALN coated K 10-K20, sub-micro grade with Titanium Aluminum Nitride TTIS30 multi-layer coating. To be run at medium to high cutting speeds, General purpose for all material. Boring Copying Back Boring Chamfering Cutting Speed m/minISO StandardMaterialCondition Min. dia. of machining : 03.2 Min. dia. of machining : 04.2 Min. dia. of machining : 03.2 Min. dia. of machining : 04.2 TTIP30 TTIM45 TTIS30 <0.25%C Annealed >0.25%C Annealed Non-Alloy steel and cast steel, freecutting steel <0.55%C Quenched and Tempered 25-50 30-80 30-60 P >0.55%C AnnealedQuenched and Tempered O)C Low alloy steel and cast steel (less than 5% alloying Annealedelements)Quenched and Tempered20-25 50-70 24-30 > O Annealed 215 Oo Square Grooving Round Grooving Face Grooving High alloy steel, cast steel , and tool steel 18-20 30-50 22-24Quenched and Tempered216 Min. dia. of machining : 03.2 Min. dia. of machining : 03.2 Min. dia. of machining : 06.0 M Ferritic / martensiticStainless steel and cast steelMartensitic25-3040-6030-42 Austenitic Ferritic / pearlitic Cast iron nodular (GGG) 17-23 50-70 30-42 Pearlitic Ferritic Grey cast iron (GG) 17-23 50-70 30-42 CD Pearlitic C Ferritic "O03_0C Threading Malleable cast iron 17-23 50-70 30-42PearliticNot cureableAluminum-wrought alloy50-70100-15060-84 Min. dia. of machining : 03.3 Cured <12% Si Not cureable Aluminum-cast alloy Cured 30-40 60-100 36-48 >12% Si High temperature >1% Pb Free cutting Copper alloys Brass 22-25 60-100 24-30 Electrolytic copper Duroplatics, fiber plastics Non metalic 35-45 Hard rubber Annealed Fe based s High temperature alloys, Superalloys Ni or Co based CuredAnnealedCured 15-20 15-20 18-24 Cast Titanium alloy Alpha+beta alloys cured 12-18 40-50 15-20 Hardened 45-50 HRC H Hardend steel Hardened 51-55 HRC 15-20 20-45 18-24Hardened 56-62 HRC Chilled cast iron cast 10-14 12-16 Cast iron Hardened 8-12 10-14