HSCo blue-ring machine tap for blind holes DIN 371/376

Name: HSCo blue-ring machine tap for blind holes DIN 371/376
Brand: Würth
SKU: 065308

Machine screw tap HSCo blue form C
MATAP-BLIHO-HSCO-DIN371-BLUE-M8
ZEBRA

Art.-no. 065308

EAN 4011231541114

All versions

Specification

The blue ring machine tap for general, wide-ranging applications in long-chipping, non-alloyed steels up to a strength of 850 N/mm².

Optimized micro-geometry and diagonally stepped threaded part for high process reliability and longer service life compared to comparable machine taps

Notice

Thread type	Metric thread
Material to be processed	Steel
Hole type	Blind hole ≤ 2.5xD
Suitable for machine type	Milling/drill center, Pedestal drilling machine
Quality	ZEBRA-Premium
Thread type x nominal diameter	M8
Pitch	1.25 mm
Length	90 mm
Shank diameter	8.0 mm
Size of square	6.2 mm
DIN	371
Cutting material	HSCo
Surface	Plain
Form	C
Core hole diameter	6.8 mm
Twist angle	40° (right)
Shank style	Cylindrical with square drive
Tolerance of screw taps	ISO 2 (6H)
Suitable for tensile strength up to	850 N/mm²
Service life (points system)	2 of 4 points
Trueness to gauge (points system)	4 of 4 points
Versatility (points system)	1 of 4 points
Cutting behaviour (points system)	3 of 4 points
Chip formation (points system)	2 of 4 points
Material of sub-group	General structural steels, Non-alloyed tempering steels

For M24-M30
Material designation	Tensile strength			M24			M30
		v_c		n		f	n		f
		from	to	from	to		from	to
Steels
General structural steels	< 850 N/mm²	15	20	106	133	3,00	85	106	3,50
Unalloyed quenched and tempered steels	< 850 N/mm²	15	20	106	133	3,00	85	106	3,50
Low-alloy quenched and tempered steels	< 850 N/mm²	15	20	106	133	3,00	85	106	3,50
Unalloyed quenched and tempered steels	< 1,000 N/mm²	10	15	106	133	3,00	85	106	3,50
Low-alloy quenched and tempered steels	< 1,000 N/mm²	10	15	106	133	3,00	85	106	3,50
Alloyed quenched and tempered steels	< 1,200 N/mm²	6	8	106	133	3,00	85	106	3,50
Nitriding steels	< 1,200 N/mm²	6	8	106	133	3,00	85	106	3,50
Tool steels	< 1,200 N/mm²	6	8	106	133	3,00	85	106	3,50
High-speed steels	< 1,200 N/mm²	6	8	106	133	3,00	85	106	3,50

For M14-M20
Material designation	Tensile strength			M14			M16			M20
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	< 850 N/mm²	15	20	182	227	2,00	159	199	2,00	127	159	2,50
Unalloyed quenched and tempered steels	< 850 N/mm²	15	20	182	227	2,00	159	199	2,00	127	159	2,50
Low-alloy quenched and tempered steels	< 850 N/mm²	15	20	182	227	2,00	159	199	2,00	127	159	2,50
Unalloyed quenched and tempered steels	< 1,000 N/mm²	10	15	182	227	2,00	159	199	2,00	127	159	2,50
Low-alloy quenched and tempered steels	< 1,000 N/mm²	10	15	182	227	2,00	159	199	2,00	127	159	2,50
Alloyed quenched and tempered steels	< 1,200 N/mm²	6	8	182	227	2,00	159	199	2,00	127	159	2,50
Nitriding steels	< 1,200 N/mm²	6	8	182	227	2,00	159	199	2,00	127	159	2,50
Tool steels	< 1,200 N/mm²	6	8	182	227	2,00	159	199	2,00	127	159	2,50
High-speed steels	< 1,200 N/mm²	6	8	182	227	2,00	159	199	2,00	127	159	2,50

Key
v_c = cutting speed [m/min]
f = feed [mm/r]
n = rotation speed [rpm]
The suggested cutting values are reference values and must be adapted to the respective conditions.

For M2-M3
Material designation	Tensile strength			M2			M2.5			M3
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	< 850 N/mm²	15	20	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
Unalloyed quenched and tempered steels	< 850 N/mm²	15	20	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
Low-alloy quenched and tempered steels	< 850 N/mm²	15	20	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
Unalloyed quenched and tempered steels	< 1,000 N/mm²	10	15	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
Low-alloy quenched and tempered steels	< 1,000 N/mm²	10	15	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
Alloyed quenched and tempered steels	< 1,200 N/mm²	6	8	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
Nitriding steels	< 1,200 N/mm²	6	8	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
Tool steels	< 1,200 N/mm²	6	8	1273	1592	0,40	1019	1273	0,50	849	1061	0,50
High-speed steels	< 1,200 N/mm²	6	8	1273	1592	0,40	1019	1273	0,50	849	1061	0,50

For M8-M12
Material designation	Tensile strength			M8			M10			M12
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	< 850 N/mm²	15	20	318	398	1,30	255	318	1,50	212	265	1,80
Unalloyed quenched and tempered steels	< 850 N/mm²	15	20	318	398	1,30	255	318	1,50	212	265	1,80
Low-alloy quenched and tempered steels	< 850 N/mm²	15	20	318	398	1,30	255	318	1,50	212	265	1,80
Unalloyed quenched and tempered steels	< 1,000 N/mm²	10	15	318	398	1,30	255	318	1,50	212	265	1,80
Low-alloy quenched and tempered steels	< 1,000 N/mm²	10	15	318	398	1,30	255	318	1,50	212	265	1,80
Alloyed quenched and tempered steels	< 1,200 N/mm²	6	8	318	398	1,30	255	318	1,50	212	265	1,80
Nitriding steels	< 1,200 N/mm²	6	8	318	398	1,30	255	318	1,50	212	265	1,80
Tool steels	< 1,200 N/mm²	6	8	318	398	1,30	255	318	1,50	212	265	1,80
High-speed steels	< 1,200 N/mm²	6	8	318	398	1,30	255	318	1,50	212	265	1,80

For M4-M6
Material designation	Tensile strength			M4			M5			M6
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
Steels
General structural steels	< 850 N/mm²	15	20	637	796	0,70	509	637	0,80	424	531	1,00
Unalloyed quenched and tempered steels	< 850 N/mm²	15	20	637	796	0,70	509	637	0,80	424	531	1,00
Low-alloy quenched and tempered steels	< 850 N/mm²	15	20	637	796	0,70	509	637	0,80	424	531	1,00
Unalloyed quenched and tempered steels	< 1,000 N/mm²	10	15	637	796	0,70	509	637	0,80	424	531	1,00
Low-alloy quenched and tempered steels	< 1,000 N/mm²	10	15	637	796	0,70	509	637	0,80	424	531	1,00
Alloyed quenched and tempered steels	< 1,200 N/mm²	6	8	637	796	0,70	509	637	0,80	424	531	1,00
Nitriding steels	< 1,200 N/mm²	6	8	637	796	0,70	509	637	0,80	424	531	1,00
Tool steels	< 1,200 N/mm²	6	8	637	796	0,70	509	637	0,80	424	531	1,00
High-speed steels	< 1,200 N/mm²	6	8	637	796	0,70	509	637	0,80	424	531	1,00