FRACTIONAL 3 Flute Countersink 3 L2 L1 D2 D1 TOLERANCES (inch) D3 603 1/8–1/4 DIAMETER 60°, 82°, 90° FRACTIONAL SERIES D1 = +.0000/–.0005 inch EDP NO. 3/8–1 DIAMETER CUTTING SHANK OVERALL TIP UNCOATED UNCOATED UNCOATED D1 = +.003/–.000 DIAMETER DIAMETER LENGTH DIAMETER 60° 82° 90° D1 D2 L1 D3 Included Angle 1/8 1/8 1-1/2 .040 – – 74225 +1°/–1° 1/8 1/8 1-1/2 .040 – 74125 – STEELS 1/8 1/8 1-1/2 .035 74025 – – 3/16 3/16 2 .060 – – 74228 STAINLESS STEELS 3/16 3/16 2 .060 – 74128 – CAST IRON 3/16 3/16 2 .045 74028 – – HIGH TEMP ALLOYS 1/4 1/4 2 .100 – – 74231 1/4 1/4 2 .100 – 74131 – TITANIUM 1/4 1/4 2 .070 74031 – – HARDENED STEELS 3/8* 1/4 2-13/16 .108 – – 74234 NON-FERROUS 3/8* 1/4 2-13/16 .108 – 74134 – 3/8* 1/4 2-13/16 .100 74034 – – For patent 1/2* 1/4 2-7/8 .122 – – 74237 information visit 1/2* 1/4 2-7/8 .122 – 74137 – www.ksptpatents.com 1/2* 1/4 2-7/8 .113 74037 – – 5/8* 3/8 3 .138 – – 74240 5/8* 3/8 3 .138 – 74140 – 5/8* 3/8 3 .128 74040 – – 3/4* 1/2 3 .153 – – 74243 3/4* 1/2 3 .153 – 74143 – 3/4* 1/2 3 .143 74043 – – 1* 1/2 3-1/4 .168 – – 74246 1* 1/2 3-1/4 .168 – 74146 – 1* 1/2 3-1/4 .158 74046 – – *Steel Shank / Con mango de acero / Avec queue en acier / Mit Stahlschaft NOTE: D3 dimension varies based on angle. Contact your KSPT representative or consult KYOCERA SGS Tool Wizard® for dimension information. www.kyoceraD-sRgILsLtoSol.com DRILLS 319