Item Number: 8-725-1079

Quick Change Torque Control Tap Adapter, 5/16in #1 (19/1-4079) Tap Shank ANSI B94.9-1999 TMX by Toolmex
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Tap Size 5/16 or M7, M8
Size #1
Tap Shank Diameter in 0.318
Drive Square Size in 0.238
a mm 21.5
b mm 25
c mm 8
d mm 19
D mm 32
Type 19/1-4079