Screw Machine Length Drill Bits
Note: Shank diameter is the same as the drill size.

Part # Size Diameter Flute Length Overall Length Price Quantity SMA #A 0.2340" 1-15/16" 2-7/16" $1.39 SMB #B 0.2380" 1-3/16" 2-1/2" $1.39 SMC #C 0.2420" 1-3/8" 2-1/2" $1.53 SMD #D 0.2460" 1-3/8" 2-1/2" $1.39 SME #E 0.2500" 1-3/8" 2-1/2" $1.49 SMF #F 0.2570" 1-7/16" 2-5/8" $1.54 SMG #G 0.2610" 1-7/16" 2-5/8" $1.64 SMH #H 0.2660" 1-1/2" 2-11/16" $1.64 SMI #I 0.2720" 1-1/2" 2-11/16" $1.64 SMJ #J 0.2770" 1-1/2" 2-11/16" $1.77 SMK #K 0.2811" 1-1/2" 2-11/16" $1.88 SML #L 0.2900" N/A N/A $1.88 SMM #M 0.2950" 1-9/16" 2-3/4" $2.07

Part # Size Diameter Flute Length Overall Length Price Quantity SMN #N 0.3020" 1-5/8" 2-13/16" $2.07 SMO #O 0.3160" 1-11/16" 2-15/16" $2.12 SMP #P 0.3230" 1-11/16" 2-15/16" $2.34 SMQ #Q 0.3320" 1-11/16" 3" $2.34 SMR #R 0.3390" 1-11/16" 3" $2.36 SMS #S 0.3480" 1-3/4" 3-1/16" $2.70 SMT #T 0.3580" 1-3/4" 3-1/16" $3.15 SMU #U 0.3680" 1-13/16" 3-1/8" $3.15 SMV #V 0.3770" 1-7/8" 3-1/4" $3.32 SMW #W 0.3860" 1-7/8" 3-1/4" $3.71 SMX #X 0.3970" 1-15/16" 3-5/16" $4.08 SMY #Y 0.4040" 2" 3-3/8" $4.78 SMZ #Z 0.4130" N/A N/A $4.78

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