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Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5
Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 - 1
Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 - 2
Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 - 3
Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 - 4
Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 - 5
Twist drill bit HSCO DIN 338 SMART STEP - DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5 - 6

Twist drill bit HSCO DIN 338 SMART STEP

Twist drill bit HSCo DIN 338 SMART STEP
DRL-TWST-MET-DIN338-HSCO-SMARTSTEP-D9,5
ZEBRA SMART STEP

Art.-no. 0626940950
EAN 4062856816392
All versions

Prices for customers after login
Twist drill bit HSCO DIN 338 SMART STEP

Art.-no. 0626940950

Prices for customers after login
Quantity
PU
x 1 pcs

Exclusively for trade customers

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The multi-performance drill bit with unique SMART STEP technology (from dia. 2.5 mm) for manually drilled high-precision circular holes in almost all materials, such as stainless steel (e.g. V2A, V4A), heat-resistant steels and titanium. Also suitable for general applications in conventional steel up to 1200 N/mm² strength as well as in cast iron, non-ferrous metals, hardwood and softwood.

Newly designed stepped drill bit tip geometry (from dia. 2.5 mm)



Significantly faster than conventional twist drill bits



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



Precise, circular holes without centre-punching



Extremely comfortable drilling


  • Eliminates pre-drilling, precise spot drilling without running off-centre

  • Angled drilling possible

  • Simple drilling or enlarging of an existing drill hole

  • Perfect for drilling out rivets

  • Ideal for drilling in round material or pipes with stringent requirements for centring, precision and service life, e.g. in railing construction


The first twist drill bit to enable precise drilling up to dia. 20 mm without pre-drilling in hand-held tools


  • Optimised stepped drill bit tip geometry

  • Shank reduced to dia. 12.7 mm from > 13.0 mm drill bit diameter for use in all standard 3-jaw drill chucks


3-flat shank (from dia. 4 mm)


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

  • Optimal power transmission

  • Protects the drill chuck from damage

  • Minimal effort required to loosen and tighten the drill chuck


Product packaging made from 100 % PCR (recycled plastic from household waste) and 100 % recyclable

Notice

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

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

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Application area
  • Perfect for drilling round pipes (e.g. in railing construction), for drilling out stud bolts, rivet holes, for drilling sheet metal and thin-walled profile materials

  • Ideal for high-precision, comfortable and fast drilling in solid materials

  • Ideal for large bore diameters

Suitable for machine type

Drill, Cordless screwdrivers, Pedestal drilling machine

Material to be processed

Steel, Cast iron, Stainless steel, Titanium, Non-ferrous metal, Wood, Hardwood

Quality

ZEBRA-Premium

Standard / drilling depth

DIN 338 / 5xD

Diameter (Ø)

9.5 mm

Length (l1)

125 mm

Chip flute length (l2)

81 mm

Drill tip length (l3)

8.5 mm

Shank style

3-face shank

Surface

Oxide finish

Cutting material

HSCo

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)

4 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

Self-centring

Yes

Suitable for tensile strength up to

1200 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, White cast iron, Stainless steels, sulphurated, Stainless steels, martensitic, Stainless steels, austenitic, Titanium, Titanium alloys, Spring steels, Aluminium, Aluminium 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

Legend
vc = 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. 12.5–20.0
Material designation Tensile strength from dia. 12.5 from dia. 16.0 from dia. 20.0
vc n f n f n f
from to from to from to from to
General structural steels ≤ 850 N/mm² 18 27 458 687 0,040 358 537 0,042 286 430 0,044
Unalloyed heat-treated steels ≤ 850 N/mm² 18 27 458 687 0,040 358 537 0,042 286 430 0,044
Low-alloy heat-treated steels ≤ 850 N/mm² 18 27 458 687 0,040 358 537 0,042 286 430 0,044
Unalloyed heat-treated steels ≤ 1000 N/mm² 15 23 382 585 0,037 298 457 0,040 238 366 0,042
Low-alloy heat-treated steels ≤ 1000 N/mm² 15 23 382 585 0,037 298 457 0,040 238 366 0,042
Alloyed heat-treated steels ≤ 1000 N/mm² 10 15 254 382 0,037 199 298 0,040 159 238 0,042
Nitriding steels ≤ 1000 N/mm² 10 15 254 382 0,037 199 298 0,040 159 238 0,042
Tool steels ≤ 1000 N/mm² 10 15 254 382 0,037 199 298 0,040 159 238 0,042
High-speed steels ≤ 1000 N/mm² 10 15 254 382 0,037 199 298 0,040 159 238 0,042
Cast iron ≤ 350 HB 15 23 382 585 0,037 298 457 0,040 238 366 0,042
Spheroidal graphite and malleable iron ≤ 350 HB 15 23 382 585 0,037 298 457 0,040 238 366 0,042
Stainless steels  1,200 N/mm² 8 12 203 305 0,037 159 238 0,04 109 168 0,042
Titanium  850 N/mm² 6 10 153 255 0,035 119 199 0,038 79 129 0,04
Aluminium ≤ 600 N/mm² 35 45 891 1146 0,040 696 895 0,041 557 716 0,044
Plastics, duroplastic 15 23 382 585 0,041 298 457 0,042 238 366 0,044
Plastics, thermoplastic 15 23 382 585 0,041 298 457 0,042 238 366 0,044
Softwood 21 30 535 764 0,042 418 597 0,045 334 477 0,047
Hardwood 18 27 458 687 0,039 358 537 0,042 286 430 0,044
Cutting parameters for twist drill bit HSCo DIN 338 SMART STEP
For dia. 1.0–2.5
Material designation Tensile strength from dia. 1.0 from dia. 2.0 from dia. 2.5
vc n f n f n f
from to from to from to from to
General structural steels ≤ 850 N/mm² 18 27 5732 8598 0,011 2866 4299 0,013 2292 3439 0,017
Unalloyed heat-treated steels ≤ 850 N/mm² 18 27 5732 8598 0,011 2866 4299 0,013 2292 3439 0,017
Low-alloy heat-treated steels ≤ 850 N/mm² 18 27 5732 8598 0,011 2866 4299 0,013 2292 3439 0,017
Unalloyed heat-treated steels ≤ 1000 N/mm² 15 23 4777 7324 0,01 2388 3662 0,012 1910 2929 0,014
Low-alloy heat-treated steels ≤ 1000 N/mm² 15 23 4777 7324 0,01 2388 3662 0,012 1910 2929 0,014
Alloyed heat-treated steels ≤ 1000 N/mm² 10 15 3184 4777 0,01 1592 2388 0,012 1273 1910 0,014
Nitriding steels ≤ 1000 N/mm² 10 15 3184 4777 0,01 1592 2388 0,012 1273 1910 0,014
Tool steels ≤ 1000 N/mm² 10 15 3184 4777 0,01 1592 2388 0,012 1273 1910 0,014
High-speed steels ≤ 1000 N/mm² 10 15 3184 4777 0,01 1592 2388 0,012 1273 1910 0,014
Cast iron ≤ 350 HB 15 23 4777 7324 0,01 2388 3662 0,012 1910 2929 0,014
Spheroidal graphite and malleable iron ≤ 350 HB 15 23 4777 7324 0,01 2388 3662 0,012 1910 2929 0,014
Stainless steels  1,200 N/mm² 8 12 2547 3821 0,01 1273 1910 0,012 1019 1518 0,014
Titanium  850 N/mm² 6 10 1910 3183 0,008 955 1592 0,01 764 1273 0,012
Aluminium ≤ 600 N/mm² 35 45 11146 14331 0,011 5573 7165 0,013 4458 5732 0,016
Plastics, duroplastic 15 23 4777 7324 0,012 2388 3662 0,014 1910 2929 0,017
Plastics, thermoplastic 15 23 4777 7324 0,012 2388 3662 0,014 1910 2929 0,017
Softwood 21 30 6688 9554 0,013 3344 4777 0,015 2675 3821 0,018
Hardwood 18 27 5732 8598 0,011 2866 4299 0,014 2292 3439 0,016
For dia. 6.3–10.0
Material designation Tensile strength from dia. 6.3 from dia. 8.0 from dia. 10.0
vc n f n f n f
from to from to from to from to
General structural steels ≤ 850 N/mm² 18 27 909 1364 0,029 716 1074 0,032 573 859 0,037
Unalloyed heat-treated steels ≤ 850 N/mm² 18 27 909 1364 0,029 716 1074 0,032 573 859 0,037
Low-alloy heat-treated steels ≤ 850 N/mm² 18 27 909 1364 0,029 716 1074 0,032 573 859 0,037
Unalloyed heat-treated steels ≤ 1000 N/mm² 15 23 758 1162 0,027 597 915 0,030 477 732 0,033
Low-alloy heat-treated steels ≤ 1000 N/mm² 15 23 758 1162 0,027 597 915 0,030 477 732 0,033
Alloyed heat-treated steels ≤ 1000 N/mm² 10 15 505 758 0,027 398 597 0,030 318 477 0,033
Nitriding steels ≤ 1000 N/mm² 10 15 505 758 0,027 398 597 0,030 318 477 0,033
Tool steels ≤ 1000 N/mm² 10 15 505 758 0,027 398 597 0,030 318 477 0,033
High-speed steels ≤ 1000 N/mm² 10 15 505 758 0,027 398 597 0,030 318 477 0,033
Cast iron ≤ 350 HB 15 23 758 1162 0,027 597 915 0,030 477 732 0,033
Spheroidal graphite and malleable iron ≤ 350 HB 15 23 758 1162 0,027 597 915 0,030 477 732 0,033
Stainless steels  1,200 N/mm² 8 12 404 606 0,027 318 477 0,03 254 382 0,033
Titanium  850 N/mm² 6 10 303 505 0,025 239 398 0,028 191 318 0,031
Aluminium ≤ 600 N/mm² 35 45 1769 2274 0,029 1393 1791 0,032 1114 1433 0,037
Plastics, duroplastic 15 23 758 1162 0,030 597 915 0,033 477 732 0,038
Plastics, thermoplastic 15 23 758 1162 0,030 597 915 0,033 477 732 0,038
Softwood 21 30 1061 1516 0,031 836 1194 0,034 668 955 0,039
Hardwood 18 27 909 1364 0,031 716 1074 0,033 573 859 0,037
For dia. 3.15–5.0
Material designation Tensile strength from dia. 3.15 from dia. 4.0 from dia. 5.0
vc n f n f n f
from to from to from to from to
General structural steels ≤ 850 N/mm² 18 27 1819 2729 0,019 1433 2149 0,022 1146 1719 0,027
Unalloyed heat-treated steels ≤ 850 N/mm² 18 27 1819 2729 0,019 1433 2149 0,022 1146 1719 0,027
Low-alloy heat-treated steels ≤ 850 N/mm² 18 27 1819 2729 0,019 1433 2149 0,022 1146 1719 0,027
Unalloyed heat-treated steels ≤ 1000 N/mm² 15 23 1516 2325 0,017 1194 1831 0,020 955 1464 0,023
Low-alloy heat-treated steels ≤ 1000 N/mm² 15 23 1516 2325 0,017 1194 1831 0,020 955 1464 0,023
Alloyed heat-treated steels ≤ 1000 N/mm² 10 15 1011 1516 0,017 796 1194 0,020 636 955 0,023
Nitriding steels ≤ 1000 N/mm² 10 15 1011 1516 0,017 796 1194 0,020 636 955 0,023
Tool steels ≤ 1000 N/mm² 10 15 1011 1516 0,017 796 1194 0,020 636 955 0,023
High-speed steels ≤ 1000 N/mm² 10 15 1011 1516 0,017 796 1194 0,020 636 955 0,023
Cast iron ≤ 350 HB 15 23 1516 2325 0,017 1194 1831 0,020 955 1464 0,023
Spheroidal graphite and malleable iron ≤ 350 HB 15 23 1516 2325 0,017 1194 1831 0,020 955 1464 0,023
Stainless steels  1,200 N/mm² 8 12 808 1213 0,017 636 955 0,02 509 764 0,023
Titanium  850 N/mm² 6 10 606 1011 0,015 477 796 0,018 382 637 0,021
Aluminium ≤ 600 N/mm² 35 45 3538 4549 0,018 2786 3582 0,022 2229 2866 0,027
Plastics, duroplastic 15 23 1516 2325 0,019 1194 1831 0,023 955 1464 0,028
Plastics, thermoplastic 15 23 1516 2325 0,019 1194 1831 0,023 955 1464 0,028
Softwood 21 30 2123 3033 0,019 1672 2388 0,024 1338 1910 0,029
Hardwood 18 27 1819 2729 0,019 1433 2149 0,023 1146 1719 0,028
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