Diameter	Flute length	Total Length
1/16"	20	64
5/64"	24	70
3/32"	30	78
7/64"	33	82
1/8"	36	86
9/64"	39	91
5/32"	43	96
11/64"	47	101
3/16"	52	107
13/64"	52	107
7/32"	57	114
15/64"	57	114
1/4"	63	122

Diameter	Flute Length	Total Length
1.5	18	61
2.0	24	70
2.5	30	78
3.0	33	82
3.2	36	86
3.5	36	86
4.0	43	96
4.5	47	101
4.8	52	107
5.0	52	107
5.5	57	114
6.0	57	114
6.5	63	122

Hangzhou FANXI Tools Company is an experienced HEX shank twist drill bit supplier, founded in 2002. We have passed the international certification of GS, CE, EMC, ITS, SAA and UL. Our products are exported to countries, such as U.S.A, Canada, Turkey, Norway, Germany, Brazil, India, Australia and Thailand. Besides HEX Shank Twist Drill Bit, we also provide aircraft extension twist drill bit, taper length twist drill bit, jobber length twist drill bit and the like. If you are interested in our drill bits, please contact. Thanks.