DIN352 hand tap
ThreeTap System
Taper Tap: Long chamfer for easy alignment and reduced initial cutting force.
Second Tap: Intermediate cutting to extend thread depth.
Bottoming Tap: Flat end for creating full threads in blind holes.
Material & Treatment
HighSpeed Steel (HSS): Hardness 62-64 HRC, wearresistant for manual operations.
Oxide Coating: Anticorrosion protection for extended tool life.
Straight Flute Design
Versatility: Ideal for through holes and shallow blind holes with stable cutting force.
Easy Maintenance: Efficient chip evacuation and cleaning during hand tapping.
Tolerance Class
DIN352 Compliance: Achieves 6H tolerance class for precise thread fit.
TYPICAL APPLICATION SCENARIOS
1. Mechanical Repair: Onsite threading repair for machinery bases or transmission parts.
2. LowVolume Production: Hand tapping bolts/flanges in carbon steel, alloy steel, or cast iron.
3. Mold Manufacturing: Flexible threading of mold inserts.
Feature |
DIN352 Hand Tap Set |
Single Hand Tap |
Blind Hole |
Full threads with bottoming tap |
Limited to through holes |
Cutting Force |
Gradual load reduction |
High risk of jamming |
Versatility |
Complex & small-batch jobs |
Basic through holes only |
Size |
L |
Lc |
Limit |
d |
k |
dk |
M2 |
36 |
8 |
6H |
2.8 |
2.1 |
1.6 |
M2.5 |
40 |
9 |
6H |
2.8 |
2.1 |
2.05 |
M3 |
40 |
11 |
6H |
3.5 |
2.7 |
2.5 |
M3.5 |
45 |
13 |
6H |
4 |
3 |
2.9 |
M4 |
45 |
13 |
6H |
4.5 |
3.4 |
3.7 |
M4.5 |
80 |
15 |
6H |
4.5 |
3.4 |
5 |
M5 |
50 |
16 |
6H |
6 |
4.9 |
4.2 |
M6 |
56 |
19 |
6H |
6 |
4.9 |
5 |
M7 |
56 |
19 |
6H |
6 |
4.9 |
6 |
M8 |
63 |
22 |
6H |
6 |
4.9 |
6.75 |
M9 |
63 |
22 |
6H |
7 |
5.5 |
7.75 |
M10 |
70 |
24 |
6H |
7 |
5.5 |
8.5 |
M11 |
70 |
24 |
6H |
8 |
6.2 |
9.5 |
M12 |
75 |
28 |
6H |
9 |
7 |
10.25 |
M14 |
80 |
30 |
6H |
11 |
9 |
12 |
M16 |
80 |
32 |
6H |
12 |
9 |
14 |
M18 |
95 |
34 |
6H |
14 |
11 |
15.5 |
M20 |
95 |
34 |
6H |
16 |
12 |
17.5 |







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