HSS SMART STEP combination tap bit - MATAP-COMBI-BIT-HSS-SMARTSTEP-M4

HSS SMART STEP combination tap bit - MATAP-COMBI-BIT-HSS-SMARTSTEP-M4 - 1

HSS SMART STEP combination tap bit - MATAP-COMBI-BIT-HSS-SMARTSTEP-M4 - 2

HSS SMART STEP combination tap bit

Name: HSS SMART STEP combination tap bit
Brand: Würth
SKU: 0653930400

Combination screw tap bit HSS SMART STEP
MATAP-COMBI-BIT-HSS-SMARTSTEP-M4
ZEBRA SMART STEP

Art.-no. 0653930400

EAN 4062856844265

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HSS SMART STEP combination tap bit

Art.-no. 0653930400

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The short HSS combination screw tap with unique SMART STEP technology for highly precise drilling, thread cutting and countersinking/deburring in a single operation.

3 in 1: drilling, thread cutting and countersinking/deburring in one work step

No tool change required, saving time and costs

The first combination screw tap with stepped drill bit tip geometry

Work up to 100 % faster than with conventional HSS combination screw taps

Optimal centring even when working on curved surfaces

High-precision, circular drilling as ideal preparation for the quality of subsequent thread cutting

Effortless drilling

True-to-the-gauge through hole thread according to ISO 2 (6H)

1/4 inch hexagon mount

Prevents spinning in the drill chuck, ensures optimal power transmission and protects the drill chuck from damage

Product packaging made of 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified^® Bronze

Available exclusively from Würth

Notice

Generally only suitable for through hole threads with a material thickness of max. 1xD

Countersinks according to DIN74-1 for countersunk head screws (according to DIN 7991) are not possible

For use in cordless drill drivers, handheld drills, drill presses and on pillar drills.

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Application area

Perfect for through holes in aluminium, brass and plastics up to 1xD (e.g. M6 = 6 mm material thickness).

Also ideal for machining sheet metal made from unalloyed and alloyed steels up to 600 N/mm², and from malleable iron

Instructions

Significantly reduce the rotation speed for thread cutting and countersinking/deburring after drilling. The recommended cutting parameters for the various materials and tool diameters can be found in the cutting parameter overview.

Use sufficient coolant and lubricant.

Ensure to work perpendicular to the material. Avoid tilting: Risk of tool breakage!

All threads of the combination screw tap must be through and out of the hole before reversing it. Otherwise the tool or the cutting edges might break.

Thread type x nominal diameter	M4
Thread type	Metric thread
Material to be processed	Non-ferrous metal, Steel, Cast metal
Hole type	Clearance hole ≤ 1xD
Quality	ZEBRA-Premium
Suitable for machine type	Drill, Cordless screwdrivers, Pedestal drilling machine
Pitch	0.7 mm
Length	40 mm
Shank diameter	7.18 mm
Cutting material	HSS
Surface	Plain
Shank style	Hexagon
Tolerance of screw taps	ISO 2 (6H)
Service life (points system)	2 of 4 points
Trueness to gauge (points system)	4 of 4 points
Versatility (points system)	2 of 4 points
Cutting behaviour (points system)	3 of 4 points
Chip formation (points system)	4 of 4 points
Suitable for tensile strength up to	600 N/mm²
Material of sub-group	General structural steels, Non-alloyed tempering steels, Alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels, Cast iron, Ductile iron, Malleable cast iron, Aluminium, Aluminium alloys, Aluminium wrought alloys, Aluminium casting alloys (<10% silicon), Copper, low-alloyed, Brass, long-chipping, Bronze, long-chipping, Plastics, thermoset, Plastics, thermoplastic

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

Cutting values
For M3 to M5
Material designation	Tensile strength	Operations			M3			M4			M5
			v_c		n		f	n		f	n		f
			from	to	from	to		from	to		from	to
General structural steels	≤ 850 N/mm²	Threads	8	10	849	1061	0,50	637	796	0,70	509	637	0,80
General structural steels	≤ 850 N/mm²	Drilling	18	27	2293	3439	0,015	1737	2605	0,017	1364	2047	0,02
Unalloyed heat-treated steels	≤ 850 N/mm²	Threads	8	10	849	1061	0,50	637	796	0,70	509	637	0,80
Unalloyed heat-treated steels	≤ 850 N/mm²	Drilling	18	27	2293	3439	0,015	1737	2605	0,017	1364	2047	0,02
Low-alloy heat-treated steels	≤ 850 N/mm²	Threads	8	10	849	1061	0,50	637	796	0,70	509	637	0,80
Low-alloy heat-treated steels	≤ 850 N/mm²	Drilling	18	27	2293	3439	0,015	1737	2605	0,017	1364	2047	0,02
Alloyed heat-treated steels	≤ 850 N/mm²	Threads	4	6	424	637	0,50	318	477	0,70	255	382	0,80
Alloyed heat-treated steels	≤ 850 N/mm²	Drilling	10	15	1274	1910	0,012	965	1447	0,015	758	1137	0,018
Nitriding steels	≤ 850 N/mm²	Threads	4	6	424	637	0,50	318	477	0,70	255	382	0,80
Nitriding steels	≤ 850 N/mm²	Drilling	10	15	1274	1910	0,012	965	1447	0,015	758	1137	0,018
Tool steels	≤ 850 N/mm²	Threads	4	6	424	637	0,50	318	477	0,70	255	382	0,80
Tool steels	≤ 850 N/mm²	Drilling	10	15	1274	1910	0,012	965	1447	0,015	758	1137	0,018
High-speed steels	≤ 850 N/mm²	Threads	4	6	424	637	0,50	318	477	0,70	255	382	0,80
High-speed steels	≤ 850 N/mm²	Drilling	10	15	1274	1910	0,012	965	1447	0,015	758	1137	0,018
Cast iron	≤ 300 HB	Threads	8	10	849	1061	0,50	637	796	0,70	509	637	0,80
Cast iron	≤ 300 HB	Drilling	15	23	1910	2930	0,012	1447	2220	0,015	1137	1744	0,018
Spheroidal graphite and malleable iron	≤ 350 HB	Threads	6	8	637	849	0,50	477	637	0,70	382	509	0,80
Spheroidal graphite and malleable iron	≤ 350 HB	Drilling	15	23	1910	2930	0,012	1447	2220	0,015	1137	1744	0,018
Aluminium	≤ 450 N/mm²	Threads	15	20	212	318	0,50	159	239	0,70	127	191	0,80
Aluminium	≤ 450 N/mm²	Drilling	50	60	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Aluminium alloys	≤ 450 N/mm²	Threads	15	20	212	318	0,50	159	239	0,70	127	191	0,80
Aluminium alloys	≤ 450 N/mm²	Drilling	50	60	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Al wrought alloys	≤ 400 N/mm²	Threads	15	20	212	318	0,50	159	239	0,70	127	191	0,80
Al wrought alloys	≤ 400 N/mm²	Drilling	50	60	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Al cast alloys	≤ 600 N/mm²	Threads	10	15	212	318	0,50	159	239	0,70	127	191	0,80
Al cast alloys	≤ 600 N/mm²	Drilling	40	50	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Copper, low-alloyed	≤ 400 N/mm²	Threads	15	20	212	318	0,50	159	239	0,70	127	191	0,80
Copper, low-alloyed	≤ 400 N/mm²	Drilling	50	60	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Brass, long-chipping	≤ 600 N/mm²	Threads	15	20	212	318	0,50	159	239	0,70	127	191	0,80
Brass, long-chipping	≤ 600 N/mm²	Drilling	30	40	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Bronze, long-chipping	≤ 850 N/mm²	Threads	10	15	212	318	0,50	159	239	0,70	127	191	0,80
Bronze, long-chipping	≤ 850 N/mm²	Drilling	30	40	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Plastics, duroplastic		Threads	10	15	212	318	0,50	159	239	0,70	127	191	0,80
Plastics, duroplastic		Drilling	15	20	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02
Plastics, thermoplastic		Threads	10	15	212	318	0,50	159	239	0,70	127	191	0,80
Plastics, thermoplastic		Drilling	15	20	4458	5732	0,02	3377	4342	0,02	2653	3412	0,02

For M10 to M12
Material designation	Tensile strength	Operations			M10			M12
			v_c		n		f	n		f
			from	to	from	to		from	to
General structural steels	≤ 850 N/mm²	Threads	8	10	255	318	1,50	212	265	1,75
General structural steels	≤ 850 N/mm²	Drilling	18	27	674	1011	0,03	559	838	0,035
Unalloyed heat-treated steels	≤ 850 N/mm²	Threads	8	10	255	318	1,50	212	265	1,75
Unalloyed heat-treated steels	≤ 850 N/mm²	Drilling	18	27	674	1011	0,03	559	838	0,035
Low-alloy heat-treated steels	≤ 850 N/mm²	Threads	8	10	255	318	1,50	212	265	1,75
Low-alloy heat-treated steels	≤ 850 N/mm²	Drilling	18	27	674	1011	0,03	559	838	0,035
Alloyed heat-treated steels	≤ 850 N/mm²	Threads	4	6	255	318	1,50	212	265	1,75
Alloyed heat-treated steels	≤ 850 N/mm²	Drilling	10	15	562	861	0,028	466	714	0,031
Nitriding steels	≤ 850 N/mm²	Threads	4	6	255	318	1,50	212	265	1,75
Nitriding steels	≤ 850 N/mm²	Drilling	10	15	562	861	0,028	466	714	0,031
Tool steels	≤ 850 N/mm²	Threads	4	6	255	318	1,50	212	265	1,75
Tool steels	≤ 850 N/mm²	Drilling	10	15	562	861	0,028	466	714	0,031
High-speed steels	≤ 850 N/mm²	Threads	4	6	255	318	1,50	212	265	1,75
High-speed steels	≤ 850 N/mm²	Drilling	10	15	562	861	0,028	466	714	0,031
Cast iron	≤ 300 HB	Threads	8	10	255	318	1,50	212	265	1,75
Cast iron	≤ 300 HB	Drilling	15	23	562	861	0,028	466	714	0,031
Spheroidal graphite and malleable iron	≤ 350 HB	Threads	6	8	191	255	1,50	159	212	1,75
Spheroidal graphite and malleable iron	≤ 350 HB	Drilling	15	23	562	861	0,028	466	714	0,031
Aluminium	≤ 450 N/mm²	Threads	15	20	64	95	1,50	53	80	1,75
Aluminium	≤ 450 N/mm²	Drilling	50	60	1311	1686	0,03	1087	1398	0,04
Aluminium alloys	≤ 450 N/mm²	Threads	15	20	64	95	1,50	53	80	1,75
Aluminium alloys	≤ 450 N/mm²	Drilling	50	60	1311	1686	0,03	1087	1398	0,04
Al wrought alloys	≤ 400 N/mm²	Threads	15	20	64	95	1,50	53	80	1,75
Al wrought alloys	≤ 400 N/mm²	Drilling	50	60	1311	1686	0,03	1087	1398	0,04
Al cast alloys	≤ 600 N/mm²	Threads	10	15	64	95	1,50	53	80	1,75
Al cast alloys	≤ 600 N/mm²	Drilling	40	50	1311	1686	0,03	1087	1398	0,04
Copper, low-alloyed	≤ 400 N/mm²	Threads	15	20	64	95	1,50	53	80	1,75
Copper, low-alloyed	≤ 400 N/mm²	Drilling	50	60	1311	1686	0,03	1087	1398	0,04
Brass, long-chipping	≤ 600 N/mm²	Threads	15	20	64	95	1,50	53	80	1,75
Brass, long-chipping	≤ 600 N/mm²	Drilling	30	40	1311	1686	0,03	1087	1398	0,04
Bronze, long-chipping	≤ 850 N/mm²	Threads	10	15	64	95	1,50	53	80	1,75
Bronze, long-chipping	≤ 850 N/mm²	Drilling	30	40	1311	1686	0,03	1087	1398	0,04
Plastics, duroplastic		Threads	10	15	64	95	1,50	53	80	1,75
Plastics, duroplastic		Drilling	15	20	1311	1686	0,03	1087	1398	0,04
Plastics, thermoplastic		Threads	10	15	64	95	1,50	53	80	1,75
Plastics, thermoplastic		Drilling	15	20	1311	1686	0,03	1087	1398	0,04

For M6 to M8
Material designation	Tensile strength	Operations			M6			M8
			v_c		n		f	n		f
			from	to	from	to		from	to
General structural steels	≤ 850 N/mm²	Threads	8	10	424	531	1,00	318	398	1,25
General structural steels	≤ 850 N/mm²	Drilling	18	27	1146	1719	0,025	849	1274	0,027
Unalloyed heat-treated steels	≤ 850 N/mm²	Threads	8	10	424	531	1,00	318	398	1,25
Unalloyed heat-treated steels	≤ 850 N/mm²	Drilling	18	27	1146	1719	0,025	849	1274	0,027
Low-alloy heat-treated steels	≤ 850 N/mm²	Threads	8	10	424	531	1,00	318	398	1,25
Low-alloy heat-treated steels	≤ 850 N/mm²	Drilling	18	27	1146	1719	0,025	849	1274	0,027
Alloyed heat-treated steels	≤ 850 N/mm²	Threads	4	6	212	318	1,00	159	239	1,25
Alloyed heat-treated steels	≤ 850 N/mm²	Drilling	10	15	637	955	0,021	472	708	0,025
Nitriding steels	≤ 850 N/mm²	Threads	4	6	212	318	1,00	159	239	1,25
Nitriding steels	≤ 850 N/mm²	Drilling	10	15	637	955	0,021	472	708	0,025
Tool steels	≤ 850 N/mm²	Threads	4	6	212	318	1,00	159	239	1,25
Tool steels	≤ 850 N/mm²	Drilling	10	15	637	955	0,021	472	708	0,025
High-speed steels	≤ 850 N/mm²	Threads	4	6	212	318	1,00	159	239	1,25
High-speed steels	≤ 850 N/mm²	Drilling	10	15	637	955	0,021	472	708	0,025
Cast iron	≤ 300 HB	Threads	8	10	424	531	1,00	318	398	1,25
Cast iron	≤ 300 HB	Drilling	15	23	955	1464	0,021	707	1085	0,025
Spheroidal graphite and malleable iron	≤ 350 HB	Threads	6	8	318	424	1,00	239	318	1,25
Spheroidal graphite and malleable iron	≤ 350 HB	Drilling	15	23	955	1464	0,021	707	1085	0,025
Aluminium	≤ 450 N/mm²	Threads	15	20	106	159	1,00	80	119	1,25
Aluminium	≤ 450 N/mm²	Drilling	50	60	2229	2866	0,03	1651	2123	0,03
Aluminium alloys	≤ 450 N/mm²	Threads	15	20	106	159	1,00	80	119	1,25
Aluminium alloys	≤ 450 N/mm²	Drilling	50	60	2229	2866	0,03	1651	2123	0,03
Al wrought alloys	≤ 400 N/mm²	Threads	15	20	106	159	1,00	80	119	1,25
Al wrought alloys	≤ 400 N/mm²	Drilling	50	60	2229	2866	0,03	1651	2123	0,03
Al cast alloys	≤ 600 N/mm²	Threads	10	15	106	159	1,00	80	119	1,25
Al cast alloys	≤ 600 N/mm²	Drilling	40	50	2229	2866	0,03	1651	2123	0,03
Copper, low-alloyed	≤ 400 N/mm²	Threads	15	20	106	159	1,00	80	119	1,25
Copper, low-alloyed	≤ 400 N/mm²	Drilling	50	60	2229	2866	0,03	1651	2123	0,03
Brass, long-chipping	≤ 600 N/mm²	Threads	15	20	106	159	1,00	80	119	1,25
Brass, long-chipping	≤ 600 N/mm²	Drilling	30	40	2229	2866	0,03	1651	2123	0,03
Bronze, long-chipping	≤ 850 N/mm²	Threads	10	15	106	159	1,00	80	119	1,25
Bronze, long-chipping	≤ 850 N/mm²	Drilling	30	40	2229	2866	0,03	1651	2123	0,03
Plastics, duroplastic		Threads	10	15	106	159	1,00	80	119	1,25
Plastics, duroplastic		Drilling	15	20	2229	2866	0,03	1651	2123	0,03
Plastics, thermoplastic		Threads	10	15	106	159	1,00	80	119	1,25
Plastics, thermoplastic		Drilling	15	20	2229	2866	0,03	1651	2123	0,03

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