high hardness, sharp and wear-resistant, smooth chip evacuationHigh-speed steel material is used for overall heat treatment, high hardness, fast company speed, accurate thread, long service life Terms and Conditions: When tapping, insert the head cone first to make the center line of the tap consistent with the center line of the drill hole . Rotate both hands evenly and apply a little pressure to make the tap enter the knife, no need to add pressure after the knife is enteredWhen tapping, insert the head cone first to make the center line of the tap consistent with the center line of the drill hole . Rotate both hands evenly and apply a little pressure to make the tap enter the knife, no need to add pressure after the knife is entered

DIN352   Hand Taps
Size	Pitch	Overall Length	Thread Length	Shank diameter	Limit
M2	0.4	36	8	2.8	6H
M3	0.5	40	11	3.5	6H
M4	0.7	45	13	4.5	6H
M5	0.8	50	16	6	6H
M6	1	56	19	6	6H
M7	1	56	19	6	6H
M8	1.25	63	22	6	6H
M9	1.25	63	22	7	6H
M10	1.5	70	24	7	6H
M11	1.5	70	24	8	6H
M12	1.75	75	28	9	6H
M14	2	80	30	11	6H
M16	2	80	32	12	6H
M18	2.5	95	34	14	6H
M20	2.5	95	34	16	6H
M22	2.5	100	34	18	6H
M24	3	110	38	18	6H
M27	3	110	38	20	6H
M30	3.5	125	45	22	6H
M33	3.5	125	50	25	6H
M36	4	150	56	28	6H
M39	4	150	60	32	6H
M42	4.5	150	60	32	6H
M45	4.5	160	65	36	6H
M48	5	180	70	36	6H
M52	5	180	70	40	6H

Generally used for thread processing of ordinary lathes, drilling machines and tapping machines, and the cutting speed is slow. 1.It has a good effect on machining materials with high hardness, materials that are easy to cause tool wear, cutting powdery materials, and through holes and blind holes with short tapping depths. 2.It has strong versatility, through-hole or non-through-hole, non-ferrous metal or ferrous metal can be processed, and the price is also cheap. But the target is also poor, everything can be done, and nothing is the best. The cutting cone part can have 2, 4, 6 teeth, the short cone is used for non-through holes, and the long cone is used for through holes.