Twist drill bit HSS DIN 1869 R2 SMART STEP - DRL-TWST-MET-DIN1869-HSS-SMARTSTEP-D5,5

Twist drill bit HSS DIN 1869 R2 SMART STEP - DRL-TWST-MET-DIN1869-HSS-SMARTSTEP-D5,5 - 1

Twist drill bit HSS DIN 1869 R2 SMART STEP - DRL-TWST-MET-DIN1869-HSS-SMARTSTEP-D5,5 - 2

Twist drill bit HSS DIN 1869 R2 SMART STEP - DRL-TWST-MET-DIN1869-HSS-SMARTSTEP-D5,5 - 3

Twist drill bit HSS DIN 1869 R2 SMART STEP - DRL-TWST-MET-DIN1869-HSS-SMARTSTEP-D5,5 - 4

Twist drill bit HSS DIN 1869 R2 SMART STEP

Name: Twist drill bit HSS DIN 1869 R2 SMART STEP
Brand: Würth
SKU: 0624950550

Twist drill bit HSS DIN 1869 R2 SMART STEP
DRL-TWST-MET-DIN1869-HSS-SMARTSTEP-D5,5
ZEBRA SMART STEP

Art.-no. 0624950550

EAN 4065746542975

All versions

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Twist drill bit HSS DIN 1869 R2 SMART STEP

Art.-no. 0624950550

Prices for customers after login

Quantity

x 3 pcs

Exclusively for trade customers

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The extra-long deep hole drill with unique SMART STEP technology for high-precision circular drilling in hand-guided use in soft and hardwood, composite materials, steel up to 1000 N/mm², cast iron, aluminium, plastic, copper, brass and bronze

The first extra-long twist drill bit with stepped drill bit tip geometry

Precise, circular drilling without centre-punching

Up to 100 % faster than conventional extra-long HSS drill bits

Extremely comfortable drilling

Saves pre-drilling despite the extra-long design, precise tapping

Prevents the tool from running off centre even with particularly deep drilling

Significantly less effort required when drilling compared to conventional extra-long twist drill bits

Simple boring or enlarging of an existing drill hole

3-flat shank

No spinning in the drill chuck: faster, more comfortable working

Optimal power transmission

Protects the drill chuck from damage

Little effort required to loosen and tighten the drill chuck

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

Available exclusively from Würth

Notice

For blind holes, please note the extended drill tip (see dimension l3)!

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Application area

Ideal for drilling thin-walled composite materials, e.g. in window construction (plastic profiles with steel core)

High quality of drill holes and significantly longer service life compared to conventional wood boring bits.

Perfect for cordless drill drivers as well as handheld and pillar drill and drill presses

Universally suited for smooth as well as rounded and uneven surfaces

Instructions

For optimum drilling progress and to avoid jamming, use “pecking cycles” for large drilling depths.


Suitable for machine type	Drill, Cordless screwdrivers, Pedestal drilling machine
Material to be processed	Steel, Cast iron, Non-ferrous metal, Wood, Hardwood
Quality	ZEBRA-Premium
Standard / drilling depth	DIN 1869 / 25xD
Design	Overlong
Diameter (Ø)	5.5 mm
Length (l1)	260 mm
Chip flute length (l2)	180 mm
Drill tip length (l3)	4.6 mm
Shank style	3-face shank
Surface	Multiple refined
Cutting material	HSS
Service life (points system)	3 of 4 points
Drilling speed (point system)	4 of 4 points
Bore hole quality (point system) ( )	4 of 4 points
Versatility (points system)	3 of 4 points
Drilling behaviour (point system)	4 of 4 points
Suitable for drill (points system)	4 of 4 points
Suitable for cordless drills (points system)	4 of 4 points
Suitable for upright drilling machine (points system)	4 of 4 points
Suitable for milling-drilling centre (points system)	0 - not applicable
Self-centring	Yes
Suitable for tensile strength up to	1000 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), Magnesium alloys, Copper, low-alloyed, Brass, short-chipping, Brass, long-chipping, Bronze, short-chipping, Bronze, long-chipping, Plastics, thermoset, Plastics, thermoplastic, Plastics, aramide-fibre reinforced, Plastics, glass/carbon-fibre-reinforced

Cutting parameters for twist drill bit HSS DIN 1869 R2 SMART STEP
For dia. 4.0–6.0
Material designation	Tensile strength			From dia. 4.0			From dia. 5.0			From dia. 6.0
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
General structural steels	≤ 850 N/mm²	18	27	1433	2149	0,020	1146	1719	0,025	955	1433	0,027
Unalloyed heat-treated steels	≤ 850 N/mm²	18	27	1433	2149	0,020	1146	1719	0,025	955	1433	0,027
Low-alloy heat-treated steels	≤ 850 N/mm²	18	27	1433	2149	0,020	1146	1719	0,025	955	1433	0,027
Unalloyed heat-treated steels	≤ 1000 N/mm²	15	23	1194	1831	0,018	955	1464	0,021	796	1221	0,025
Low-alloy heat-treated steels	≤ 1000 N/mm²	15	23	1194	1831	0,018	955	1464	0,021	796	1221	0,025
Alloyed heat-treated steels	≤ 1000 N/mm²	10	15	796	1194	0,018	636	955	0,021	531	796	0,025
Nitriding steels	≤ 1000 N/mm²	10	15	796	1194	0,018	636	955	0,021	531	796	0,025
Tool steels	≤ 1000 N/mm²	10	15	796	1194	0,018	636	955	0,021	531	796	0,025
High-speed steels	≤ 1000 N/mm²	10	15	796	1194	0,018	636	955	0,021	531	796	0,025
Cast iron	≤ 350 HB	15	23	1194	1831	0,018	955	1464	0,021	796	1221	0,025
Spheroidal graphite and malleable iron	≤ 350 HB	15	23	1194	1831	0,018	955	1464	0,021	796	1221	0,025
Aluminium	≤ 600 N/mm²	35	45	2786	3582	0,020	2229	2866	0,025	1857	2388	0,027
Plastics, duroplastic		15	23	1194	1831	0,020	955	1464	0,025	758	1162	0,027
Plastics, thermoplastic		15	23	1194	1831	0,020	955	1464	0,025	758	1162	0,027
Softwood		21	30	1672	2388	0,023	1338	1910	0,028	1114	1592	0,030
Hardwood		18	27	1433	2149	0,022	1146	1719	0,027	955	1433	0,030

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.

For dia. 8.0–13.0
Material designation	Tensile strength			From dia. 8.0			From dia. 10.0			From dia. 13.0
		v_c		n		f	n		f	n		f
		from	to	from	to		from	to		from	to
General structural steels	≤ 850 N/mm²	18	27	716	1074	0,03	573	859	0,035	440	661	0,038
Unalloyed heat-treated steels	≤ 850 N/mm²	18	27	716	1074	0,03	573	859	0,035	440	661	0,038
Low-alloy heat-treated steels	≤ 850 N/mm²	18	27	716	1074	0,03	573	859	0,035	440	661	0,038
Unalloyed heat-treated steels	≤ 1000 N/mm²	15	23	597	915	0,028	477	732	0,031	367	563	0,035
Low-alloy heat-treated steels	≤ 1000 N/mm²	15	23	597	915	0,028	477	732	0,031	367	563	0,035
Alloyed heat-treated steels	≤ 1000 N/mm²	10	15	398	597	0,028	318	477	0,031	245	367	0,035
Nitriding steels	≤ 1000 N/mm²	10	15	398	597	0,028	318	477	0,031	245	367	0,035
Tool steels	≤ 1000 N/mm²	10	15	398	597	0,028	318	477	0,031	245	367	0,035
High-speed steels	≤ 1000 N/mm²	10	15	398	597	0,028	318	477	0,031	245	367	0,035
Cast iron	≤ 350 HB	15	23	597	915	0,028	477	732	0,031	367	563	0,035
Spheroidal graphite and malleable iron	≤ 350 HB	15	23	597	915	0,028	477	732	0,031	367	563	0,035
Aluminium	≤ 600 N/mm²	35	45	1393	1791	0,03	1114	1433	0,035	857	1102	0,038
Plastics, duroplastic		15	23	597	915	0,03	477	732	0,035	367	563	0,038
Plastics, thermoplastic		15	23	597	915	0,03	477	732	0,035	367	563	0,038
Softwood		21	30	836	1194	0,033	668	955	0,038	514	734	0,041
Hardwood		18	27	716	1074	0,032	573	859	0,036	440	661	0,038

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