JG Engineering Supplies Ltd 01-4730900

BAER HSSG Short Machine Tap Form D - PG 7 x 20

Product information

BAER HSSG Short Machine Tap Form D - PG 7 x 20

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 7
Nominal diameter in inches 0,492
Nominal diameter in mm 12,5
Pitch 20
Pitch in mm 1,27
Dimension PG 7 x 20

Characteristics

Product group Screw taps
Product type Short machine taps
Thread standard PG: Armored conduit thread according to DIN 40430
Tolerance medium
Direction Right
Standard DIN 40432
Tensile strength at room temperature up to 900 N/mm² | 27.1 HRC
Material HSSG bright

Core hole diameter: 11.4 mm
Core hole diameter
11.4 mm
Bild Lochtyp: https://media.baer.tools/media/vector/19/52/9d/durchgangsloch_und_sackloch.svg
Hole type
Through hole and blind hole up to 4 x D
Bild Form: https://media.baer.tools/media/vector/3f/1d/45/gewindebohrer_gerade_nuten.svg
Form / Geometry
Form D straight fluted
Bild Anschnitt: https://media.baer.tools/media/vector/59/5d/26/gewindebohrer_anschnitt.svg
Chamfer
3.5-5 threads
Bild Spanabfuhr
Chip removal
Rarely occurs. Chips remain in flutes.
Bild Kühlung: https://media.baer.tools/media/vector/41/a7/9a/gewindebohrer_aussenkuehlung.svg
Cooling
External cooling and lubrication
Bild Material: https://media.baer.tools/media/vector/c8/8d/2f/gewindebohrer_blank.svg
Material
HSSG bright
Bild Zugfestigkeit: https://media.baer.tools/media/vector/c0/4a/39/zugfestigkeit.svg
Tensile strength at room temperature
up to 900 N/mm² | 27.1 HRC
Tolerance: medium
Tolerance
medium

Applications

 

  • General-purpose use
  • Materials with good machinability up to 900 N/mm²
  • Unalloyed and low-alloy steels
  • for through hole and blind hole
  • for hand and machine use

 

Technical drawing

D1 PG 7 x 20
D2 9 mm
L1 70 mm
L2 22 mm
Diameter 7
Square 7 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

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