VF-DIN5157 HSSM2 BSP(G) 55°BSW Pipe Tap 1pc

Size	T.P.I	D(mm)	L(mm)	Lc(mm)	d(mm)	K(mm)	Hole(mm)
G1/8	28	9.73	63	20	7	5.5	8.8
G1/4	19	13.16	70	20	11	9	11.8
G3/8	19	16.66	70	22	12	9	15.3
G1/2	14	20.96	80	22	16	12	19
G5/8	14	22.91	80	22	18	14.5	21
G3/4	14	26.44	90	22	20	16	24.5
G7/8	14	30.2	90	22	22	18	28.25
G1	11	33.25	100	25	25	20	30.5
G1 1/8	11	37.9	125	40	28	22	35.5
G1 1/4	11	41.91	125	40	32	24	39.5
G1 3/8	11	44.33	125	40	36	29	42
G1 1/2	11	47.81	140	40	36	29	45
G1 3/4	11	53.75	140	40	40	32	51
G2	11	59.62	160	40	45	35	57

DIN5157 HSS‑M2 BSP(G) 55° BSW Pipe Tap is industrial straight‑flute pipe tap complying with German DIN5157 standard. Made of premium HSS‑M2 high‑speed steel for good hardness and toughness in metal threading jobs.

It produces 55° BSP(G) parallel Whitworth pipe thread, widely used for pipe fittings, hydraulic and pneumatic components. Straight flute structure offers stable cutting performance for both machine tapping and hand tapping. Square shank fits conventional tap wrenches and machine tap holders.

✅ DIN5157 Compliance: Accurate thread dimension for BSP(G) parallel pipe thread✅ HSS‑M2 High‑Speed Steel: Balanced hardness and shock‑resistance for general metal machining✅ Straight Flute Design: Versatile for through‑hole and blind‑hole pipe thread tapping✅ Square Drive Shank: Compatible with tap wrench and standard machine tap holders✅ 55‑Degree BSP(G) Whitworth Pipe Thread: For British parallel pipe fittings

Suitable for creating internal BSP(G) parallel pipe threads on pipe fittings, pneumatic and hydraulic parts. Works for carbon steel, cast iron and non‑ferrous metals. Applicable for CNC machine tapping as well as hand tapping work.

Use proper tapping cutting fluid during threading process to reduce tool wear, improve thread surface finish and extend tap service life.