184A	184
T184A	T184
A184A	A184

   Machine tap with spiral point, driving the chips ahead.
   4-5 thread chamfer lead (DIN-Form B).
   Rake angle 8°÷10°measured in the 3rd thread.

182A	182
T182A	T182
A182A	A182

   Machine tap with 38° right-hand spiral flutes,
      driving the chips to the back.
   Threaded length: 10 threads.
   Starting from the 5th thread, back tapered thread
      portion to reduce friction and improve swarf clearance.
   2.5 thread chamfer lead (DIN-Form C).
   Rake angle 8°÷10°.

183A	183
T183A	T183
A183A	A183

   Machine tap with 38° right-hand spiral flutes,
      driving the chips to the back.
   Increased flute length.
   Threaded length: 10 threads.
   Starting from the 5th thread, back tapered thread
      portion to reduce friction and improve swarf clearance.
   1.5 thread chamfer lead (DIN-Form E).
   Rake angle 8°÷10°.

684A	684
T684A	T684
A684A	A684

   MACHINE TAP, WITH INTERNAL COOLANT FEED.
   Facilitates chip evacuation and improves cooling
      in cutting area.

   With spiral point, driving the chips ahead.
   4-5 thread chamfer lead (DIN-Form B).
   Rake angle 8°÷10°measured in the 3rd thread.

682A	682
T682A	T682
A682A	A682

   MACHINE TAP, WITH INTERNAL COOLANT FEED.
   Facilitates chip evacuation and improves cooling
      in cutting area.

   Machine tap with 38° right-hand spiral flutes,
      driving the chips to the back.
   Increased flute length.
   Threaded length: 10 threads.
   Starting from the 5th thread, back tapered thread
      portion to reduce friction and improve swarf clearance.
   2.5 thread chamfer lead (DIN-Form C).
   Rake angle 8°÷10°.