1pcs Spiral Point Tap:Thread size: 4-40 UNC (right hand); thread length: 13mm / 0.51"; square shank: 2.45mm / 0.1"; total length: 49.8mm / 1.96"1pcs Twist Drill Bit:Drill size: 2.3mm (right hand); cutting edge length: 27.8mm / 1.09"; shank dia.: 2.3mm / 0.09"; total length: 53.7mm / 2.11"Descriptions:Thread tap adopts spiral point and straight flute design, with clear threads and no burrs. Screw tap provides downward chip removal, fast and precise tapping, suitable for through-hole threads.Twist drill bit adopts a spiral flute chip space design to remove chips quickly and cleanly. Cutting edges provide neat and smooth cuts. Use an appropriate lubricant (such as cutting fluid or oil) to reduce friction and heat build-up.
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