Our factory supply: end mill,gear hob,machine tap,hobbing cutter,drill,band saw blade,hss tool bit,bearing,reamer.OEM&ODM welcom Outside Diameter(d)Overall Length(L)Flute Length(l)0.5~0.73060.8~0.93081.0~1.730101.2~1.4351215~1.735141.8~1.940162.0~2.440182.5~3.040203.1~3.950254.0~5.050285.1~6.060306.1~7.060327.1~11703811.1~12703812.1~148040169045 Cutting Tool--Carbide Twist Drill Regular Length