BAER HSSE VAP Hand Tap Intermediate (No. 2) M 8 x 1.25 - for Stainless Steel
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BAER HSSE VAP Hand Tap Intermediate (No. 2) M 8 x 1.25 - for Stainless Steel
The hand tap intermediate tap (No. 2) allows you to shape a thread before finishing it with the finishing tap (No. 3). The advantage of pre-cutting a thread with the intermediate tap (No. 2) is that the cutting forces on the subsequent finishing tap (No. 3) are reduced. The intermediate tap (No. 2) is marked with two rings and removes approx. 85 percent of the thread profile. Because no complete thread profile is cut, the thread is not yet usable. Only when the finishing tap (No. 3) completes the thread in the last process is it fully usable. By dividing the work between two or three taps, it is easier to cut a straight and clean thread by hand.
Compared to the machine tap, the hand tap has a short shank. This allows you to cut internal thread by hand without jamming and can be operated with tap wrenches, tool ratchets or other holding tools with square drive.
The thread can be cut in a pre-drilled core hole.
Dimensions
| Diameter |
8 |
|---|---|
| Nominal diameter in inches |
0,315 |
| Nominal diameter in mm |
8 |
| Pitch |
1,25 |
| Pitch in mm |
1,25 |
| Dimension |
M 8 x 1,25 |
Characteristics
| Product group |
Screw taps |
|---|---|
| Product type |
Hand tap sets |
| Thread standard |
M: Metric ISO standard thread according to DIN 13 |
| Tolerance |
ISO2/6H |
| Direction |
Right |
| Standard |
DIN 352 |
| Tensile strength at room temperature |
up to 1400 N/mm² | 44.5 HRC |
| Material |
HSSE VAP |
6.8 mm
Through hole and blind hole up to 2 x D
Form D straight fluted
3.5-5 threads
Rarely occurs. Chips remain in flutes.
External cooling and lubrication
HSSE VAP
up to 1400 N/mm² | 44.5 HRC
ISO2/6H
Applications
- Wear resistant steels up to 1400 N/mm²
- High alloy steels
Examples of applications
- M8 bicycle thread for clamping stem shaft and saddle
Technical drawing
| D1 |
M 8 x 1,25 |
|---|---|
| D2 |
6 mm |
| L1 |
56 mm |
| L2 |
22 mm |
| Diameter |
8 |
| Square |
4,9 mm |
Application – Sample materials
| Rust / acid-resistant steels | |
|---|---|
| 1.4105 | X 6 CrMo S 17 |
| 1.4305 | X 8 CrNi S 18-9 |
| 1.4301 | X 5 CrNi 18-10 |
| 1.4541 | X 6 CrNiTi 18-10 |
| 1.4057 | X 17 CrNi 16-2 |
| 1.4112 | X90 CrMoV 18 |
| 1.4006 | X 12 Cr 13 |
| Case-hardening steels | |
|---|---|
| 1.0401 | (C15) |
| 1.7016 | 17 CR3 |
| 1.7131 | 16MnCr5 |
| 1.5919 | 15CrNi6 |
| Quenched and tempered steels unalloyed | |
|---|---|
| 1.0402 | C 22 |
| 1.1151 | C22E (Ck 22) |
| 1.0503 | C 45 |
| 1.1191 | C45E (Ck 45) |
| Pure titanium | |
|---|---|
| 3.7035 | Ti 99.4 / Ti Gr.2 |
| 3.7065 | Ti 99.2 / Ti Gr.4 |
| Quenched and tempered steels alloyed | |
|---|---|
| 1.1133 | 20Mn5 |
| 1.5710 | 36NiCr6 |