BAER HSSG Short Machine Tap Form C - VG 5.2 x 24
BAER HSSG Short Machine Tap Form C - VG 5.2 x 24
Short machine taps allow you to cut a finished thread with just one tool in one step, even by hand. Exact internal thread can be cut by hand or semi-professionally by machine to save time.
Compared to the machine tap, the short machine 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 and does not require any preparatory work by a taper tap (No. 1) or intermediate tap (No. 2).
This internal tap clearly offers the price advantage over the hand tap set, as you no longer need two or three screw taps for thread cutting, but only one screw tap. The high time saving also significantly increases the efficiency of thread cutting.
Due to the short chamfer and the straight flutes, chip is mainly absorbed by the flutes and is not removed during cutting. We recommend removing the chip from the flutes with a brush, compressed air or similar after each thread to prevent chip jamming. This chamfer form makes the screw tap reliable and universally applicable for through holes and blind holes.
Dimensions
| Diameter |
5,2 |
|---|---|
| Nominal diameter in inches |
0,204 |
| Nominal diameter in mm |
5,18 |
| Pitch |
24 |
| Pitch in mm |
1,058 |
| Dimension |
VG 5,2 x 24 |
Characteristics
| Product group |
Screw taps |
|---|---|
| Product type |
Short machine taps |
| Thread standard |
VG: Valve thread according to DIN 7756 |
| Tolerance |
medium |
| Direction |
Right |
| Standard |
DIN 2181 |
| Tensile strength at room temperature |
up to 800 N/mm² | 22.2 HRC |
| Material |
HSSG bright |
4.25 mm
Through hole and blind hole up to 1.5 x D
Form C straight fluted
2-3 threads
Rarely occurs. Chips remain in flutes.
External cooling and lubrication
HSSG bright
up to 800 N/mm² | 22.2 HRC
medium
Applications
- Materials with good machinability up to 800 N/mm²
- Unalloyed and low-alloy steels
Examples of applications
- Valve thread
- Thread for Sclaverand valve
- Thread for Sclaverand valve
- Thread for French valve
- Thread for Presta valve
- Thread for road bike valve
- Thread for tubular tyre valve
- Thread for Regina valve
- Thread for Regina valve
- Thread for Italian valve
Technical drawing
| D1 |
VG 5,2 x 24 |
|---|---|
| D2 |
6 mm |
| L1 |
56 mm |
| L2 |
17 mm |
| Diameter |
5,2 |
| Square |
4,9 mm |
Application – Sample materials for taps
| Unalloyed construction steels | Cutting speed vc in m/min | |
|---|---|---|
| 1.0037 | St 37-2 | 5 - 12 |
| 1.0044 | St 44-2 | 5 - 12 |
| 1.0039 | S 235JRG1+CR | 5 - 12 |
| 1.0060 | St 60-2 | 5 - 10 |
| Free-cutting steels | Cutting speed vc in m/min | |
|---|---|---|
| 1.0718 | 9 SMnPb 28 | 5 - 12 |
| 1.0721 | 10 S 20 | 5 - 12 |
| 1.0736 | 9 SMn 36 | 5 - 12 |
| 1.0726 | 35 S 20 | 5 - 10 |
| Cast steel | Cutting speed vc in m/min | |
|---|---|---|
| 1.0420 | GS-38 | 8 - 15 |
| 1.1120 | GS-20 Mn 5 | 5 - 15 |
| 1.5633 | GS-24 Ni 8 | 5 - 12 |
| 1.7379 | GS-18 CrMo 9 10 | 5 - 12 |
| Alloyed construction steels | Cutting speed vc in m/min | |
|---|---|---|
| 1.5415 | 15 Mo 3 | 5 - 12 |
| 1.5622 | 14 Ni 6 | 5 - 10 |
| 1.7335 | 13 CrMo 4 4 | 5 - 10 |
| 1.7715 | 14 MoV 6 3 | 5 - 10 |
Cutting speed vc [m/min] = (Outer diameter * π * speed) / 1000
Rotation speed n [1/min] = (Cutting speed in m/min * 1000) / (Outer diameter * π)
Feedrate programming [mm/min] = speed * pitch
Please note that the above cutting speeds are indicative and must be adjusted depending on lubrication and actuation.
Further information
- VG - Valve thread DIN 7756
- Designations, geometries and definitions on taps
- Thread tolerances of the internal thread
- Internal thread and core hole dimensions
- Tap Chamfer forms
- Comparison inch-mm
- Surface treatments on tapping tools
- Cutting speeds and lubrication/cooling
- Information about tapping
- Material table