BaerCoil HSSG Tap with pilot nose for spark plugs M 10 x 1.0 STI (oversized for wire thread inserts)
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BaerCoil HSSG Tap with pilot nose for spark plugs M 10 x 1.0 STI (oversized for wire thread inserts)
BaerCoil® Combi screw tap are mainly used for thread repair in connection with wire thread inserts. With this BaerCoil® tap, the old thread can be cut in one operation, without pre-drilling, into an oversize thread as a holding thread for wire thread inserts of dimension MF 10 x 1.0. Only through holes up to a maximum thread depth of 2 x D can be produced with this.
The holding thread for MF 10 x 1.0 thread inserts is also called STI thread (screw thread insert) or STI thread (Screw Thread Insert) and has an oversize so that the normal starting thread MF 10 x 1.0 is restored after installation of the thread insert.
internal thread can be cut without canting and operated with tap wrenches, ratchets or other holding tools with square drive.
The screw tap is used in pre-cut threads to expand them into holding threads for wire thread inserts. Pre-machining with a core drill bit is not necessary.
This internal tap offers a clear advantage over short machine taps or machine taps, as the work step of core drilling and tool changing is eliminated. The high time saving also significantly increases the efficiency at thread cutting.
With the straight flutes, the chip is mainly absorbed by the chip flutes and is not removed during cutting. To prevent the chips from sticking, it is recommended to remove the chips from the flutes with a brush, compressed air or similar after each thread cutting.
Dimensions
| Diameter |
10 |
|---|---|
| Nominal diameter in inches |
0,394 |
| Nominal diameter in mm |
10 |
| Pitch |
1,0 |
| Pitch in mm |
1 |
| Dimension |
MF 10 x 1,0 EG/STI |
Characteristics
| Product group |
Screw taps Wire thread inserts - Taps |
|---|---|
| Product type |
BaerCoil screw taps |
| Thread standard |
MF EG/STI: Metric ISO fine thread for wire thread inserts according to DIN 8140-2 |
| Tolerance |
ISO2/6H mod. (ISO1/4H) |
| Direction |
Right |
| Standard |
Factory standard |
| Tensile strength at room temperature |
up to 600 N/mm² |
| Material |
HSSE bright |
Applications
All normal uses for thread repair spark plug threads.
Technical drawing
| D1 |
10 mm |
|---|---|
| D2 |
11,3 mm |
| D3 |
8 mm |
| L1 |
73 mm |
| L2 |
8 mm |
| L3 |
32 mm |
| Diameter |
10 |
| Square |
6,3 mm |
Application – Sample materials for taps
| Unalloyed construction steels | |
|---|---|
| 1.0035 | S185 (St33) |
| 1.0036 | S235JRH |
| 1.0038 | RSt37-2 |
| 1.0039 | S235JRG1+CR |
| 1.0044 | St44-2 |
| 1.0060 | E335 (St60-2) |
| 1.0116 | St37-3 |
| 1.0570 | St 52-3 |
| Alloyed construction steels | |
|---|---|
| 1.5415 | 15Mo3 |
| 1.5423 | 16Mo5 |
| 1.5622 | 14Ni6 |
| 1.7335 | 13CrMo44 |
| 1.7337 | 16CrMo44 |
| 1.7715 | 14MoV63 |
| Free-cutting steels | |
|---|---|
| 1.0711 | 9S20 |
| 1.0715 | 9SMn28 |
| 1.0718 | 11SMnPb30 |
| 1.0721 | 10S20 |
| 1.0723 | 15S20 |
| 1.0726 | 35S20 |
| 1.0737 | 9SMnPb36 |
| 1.0758 | 60SPb20 |
| Case-hardening steels | |
|---|---|
| 1.0401 | (C15) |
| 1.7016 | 17CR3 |
| 1.7131 | 16MnCr5 |
| 1.5919 | 15CrNi6 |
| Quenched and tempered steels unalloyed | |
|---|---|
| 1.0402 | C 22 |
| 1.1151 | C22E (Ck22) |
| 1.0503 | C 45 |
| 1.1191 | C45E (Ck45) |
| Cast steel | |
|---|---|
| 1.0420 | GS-38 |
| 1.5419 | GS-22 Mo 4 |
| 1.6750 | GS-20 NiCrMo3 7 |
| 1.7357 | GS-17 CrMo 5 5 |
| Malleable cast iron | |
|---|---|
| 0.8145 | EN-GJMB 450-6 |
| 0.8170 | EN-GJMB 700-2 |
| 0.8045 | EN-GJMW-450-7 |
| 0.8055 | EN-GJMW-550-4 |
| Pure copper low-alloyed | |
|---|---|
| 2.0240 | CuZn15 |
| 2.0265 | CuZn30 |
| Brass short-chipping | |
|---|---|
| 2.0401 | CuZn39Pb3 |
| Brass long-chipping | |
|---|---|
| 2.0321 | CuZn37 |
| 2.0335 | CuZn36 |
| 2.0360 | CuZn40 |
| Aluminum cast Si > 5-12 % | |
|---|---|
| 3.2161 | G-AlSi8Cu3 |
| 3.2163 | G-AlSi9Cu3 |
| 3.2381 | G-AlSi10Mg |
| 3.2583 | G-AlSi12(Cu) |
| Lamellar graphite cast iron | |
|---|---|
| 0.6010 | EN-GJL 100 (GG-10) |
| 0.6020 | EN-GJL 200 (GG -20) |
| 0.6025 | EN-GJL 250 (GG-25) |
| 0.6030 | EN-GJL 300 (GG -30) |
| Copper-tin alloy (bronze) short-chipping | |
|---|---|
| 2.1090.01 | G-CuSn7ZnPb |
| 2.1086.01 | G-CuSn10Zn |
| 2.1097 | G-CuSn5ZnPb |
| Pure copper, low-alloyed copper | |
|---|---|
| 2.0240 | CuZn15 |
| 2.0265 | CuZn30 |