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                Reduced Shank Drills

                  
                Fractional (1/4 reduced shank)
                Size Decimal Flute Length Overall Length Shank Diameter Item No.
                Equivalent L1 L2 D2
                5/16 0.3125 2-1/2 3-13/16 1/4 FT0125140516
                3/8 0.3750 2-7/8 4-1/4 1/4 FT0125140308
                7/16 0.4375 3-3/8 4-11/16 1/4 FT0125140716
                1/2 0.5000 3-5/8 5-1/16 1/4 FT0125140102
                Fractional (3/8 reduced shank)
                Size Decimal Flute Length Overall Length Shank Diameter Item No.
                Equivalent L1 L2 D2
                25/64 0.3906 3-3/4 5-1/8 3/8 FT0125382564
                13/32 0.4062 3-7/8 5-1/4 3/8 FT0125381332
                27/64 0.4219 3-15/16 5-3/8 3/8 FT0125382764
                7/16 0.4375 4-1/16 5-1/2 3/8 FT0125380716
                29/64 0.4531 4-3/16 5-5/8 3/8 FT0125382964
                15/32 0.4688 4-5/16 5-3/4 3/8 FT0125381532
                31/64 0.4844 4-3/8 5-7/8 3/8 FT0125383164
                1/2 0.5000 4-1/2 6 3/8 FT0125380102
                Fractional (1/2 reduced shank)
                Size Decimal Flute Length Overall Length Shank Diameter Item No.
                Equivalent L1 L2 D
                33/64 0.5156 3 6 1/2 FT0125120001
                17/32 0.5312 3 6 1/2 FT0125120002
                35/64 0.5469 3 6 1/2 FT0125120003
                9/16 0.5625 3 6 1/2 FT0125120004
                37/64 0.5781 3 6 1/2 FT0125120005
                19/32 0.5938 3 6 1/2 FT0125120006
                39/64 0.6094 3 6 1/2 FT0125120007
                5/8 0.6250 3 6 1/2 FT0125120008
                41/64 0.6406 3 6 1/2 FT0125120009
                21/32 0.6562 3 6 1/2 FT0125120010
                43/64 0.6719 3 6 1/2 FT0125120011
                11/16 0.6875 3 6 1/2 FT0125120012
                45/64 0.7031 3 6 1/2 FT0125120013
                23/32 0.7188 3 6 1/2 FT0125120014
                47/64 0.7344 3 6 1/2 FT0125120015
                3/4 0.7500 3 6 1/2 FT0125120016
                49/64 0.7656 3 6 1/2 FT0125120017
                25/32 0.7812 3 6 1/2 FT0125120018
                51/64 0.7969 3 6 1/2 FT0125120019
                13/16 0.8125 3 6 1/2 FT0125120020
                53/64 0.8281 3 6 1/2 FT0125120021
                27/32 0.8438 3 6 1/2 FT0125120022
                55/64 0.8594 3 6 1/2 FT0125120023
                7/8 0.8750 3 6 1/2 FT0125120024
                57/64 0.8906 3 6 1/2 FT0125120025
                29/32 0.9062 3 6 1/2 FT0125120026
                59/64 0.9219 3 6 1/2 FT0125120027
                15/16 0.9375 3 6 1/2 FT0125120028
                61/64 0.9531 3 6 1/2 FT0125120029
                31/32 0.9688 3 6 1/2 FT0125120030
                63/64 0.9844 3 6 1/2 FT0125120031
                1 1.0000 3 6 1/2 FT0125120032
                1-1/64 1.0156 3 6 1/2 FT0125120033
                1-1/32 1.0312 3 6 1/2 FT0125120034
                1-3/64 1.0469 3 6 1/2 FT0125120035
                1-1/16 1.0625 3 6 1/2 FT0125120036
                1-5/64 1.0781 3 6 1/2 FT0125120037
                1-3/32 1.0938 3 6 1/2 FT0125120038
                1-7/64 1.1094 3 6 1/2 FT0125120039
                1-1/8 1.1250 3 6 1/2 FT0125120040
                1-9/64 1.1406 3 6 1/2 FT0125120041
                1-5/32 1.1562 3 6 1/2 FT0125120042
                1-11/64 1.1719 3 6 1/2 FT0125120043
                1-3/16 1.1875 3 6 1/2 FT0125120044
                1-13/64 1.2031 3 6 1/2 FT0125120045
                1-7/32 1.2188 3 6 1/2 FT0125120046
                1-15/64 1.2344 3 6 1/2 FT0125120047
                1-1/4 1.2500 3 6 1/2 FT0125120048
                1-9/32 1.2812 3 6 1/2 FT0125120049
                1-5/16 1.3125 3 6 1/2 FT0125120050
                1-11/32 1.3438 3 6 1/2 FT0125120051
                1-3/8 1.3750 3 6 1/2 FT0125120052
                1-13/32 1.4062 3 6 1/2 FT0125120053
                1-7/16 1.4375 3 6 1/2 FT0125120054
                1-15/32 1.4688 3 6 1/2 FT0125120055
                1-1/2 1.5000 3 6 1/2 FT0125120056
                Fractional (3/4 reduced shank)
                Size Decimal Flute Length Overall Length Shank Diameter Item No.
                Equivalent L1 L2 D
                1 1.0000 3 6 3/4 FT0125340001
                1-1/32 1.0313 3 6 3/4 FT0125340002
                1-1/16 1.0625 3 6 3/4 FT0125340003
                1-3/32 1.0938 3 6 3/4 FT0125340004
                1-1/8 1.1250 3 6 3/4 FT0125340005
                1-5/32 1.1562 3 6 3/4 FT0125340006
                1-3/16 1.1875 3 6 3/4 FT0125340007
                1-7/32 1.2188 3 6 3/4 FT0125340008
                1-1/4 1.2500 3 6 3/4 FT0125340009
                1-9/32 1.2812 3 6 3/4 FT0125340010
                1-5/16 1.3125 3 6 3/4 FT0125340011
                1-11/32 1.3438 3 6 3/4 FT0125340012
                1-3/8 1.3750 3 6 3/4 FT0125340013
                1-13/32 1.4062 3 6 3/4 FT0125340014
                1-7/16 1.4375 3 6 3/4 FT0125340015
                1-15/32 1.4688 3 6 3/4 FT0125340016
                1-1/2 1.5000 3 6 3/4 FT0125340017
                1-9/16 1.5625 3 6 3/4 FT0125340018
                1-5/8 1.6250 3 6 3/4 FT0125340019
                1-11/16 1.6875 3 6 3/4 FT0125340020
                1-3/4 1.7500 3 6 3/4 FT0125340021
                1-13/16 1.8125 3 6 3/4 FT0125340022
                1-7/8 1.8750 3 6 3/4 FT0125340023
                1-15/16 1.9375 3 6 3/4 FT0125340024
                2 2.0000 3 6 3/4 FT0125340025
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