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HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM
HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM - 1
HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM - 2
HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM - 3
HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM - 4
HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM - 5
HSS DIN 338 SMART STEP twist drill bit - DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM - 6

HSS DIN 338 SMART STEP twist drill bit

Twist drill HSS DIN 338 SMART STEP
DRL-TWST-MET-DIN338-HSS-SMARTSTEP-10,0MM
ZEBRA SMART STEP

Art.-no. 0624931000
EAN 4061975499226
All versions

Prices for customers after login
HSS DIN 338 SMART STEP twist drill bit

Art.-no. 0624931000

Prices for customers after login
Quantity
PU
x 1 pcs

Exclusively for trade customers

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The manually operated high-performance drill with unique SMART STEP technology (from dia. 2.5 mm) for high-precision circular drill holes in steel up to 1000 N/mm2, aluminium, plastic, non-ferrous metals, hard and soft wood.

The original SMART STEP: the first twist drill bit with stepped drill bit tip geometry (from dia. 2.5 mm)



Precise, circular drilling



Extremely comfortable drilling


  • Saves pre-drilling, precise tapping without running off centre

  • Angled drilling possible

  • Simple boring or enlarging of an existing drill hole


Significantly faster than conventional twist drill bits with point thinning



Ideal for drilling out rivets and stud bolts



The first twist drill bit to enable precise, hand-guided drilling up to dia. 20 mm without pre-drilling, and when used on a box column drill, even allows precise drilling up to dia. 26.5 mm without pre-drilling


From drill diameter > 13.0 mm, shank reduced to dia. 12.7 mm for use in all common 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

  • 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

Notice

For blind bores, 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 rivet holes, drilling out stud bolts, for drilling sheet metal and thin-walled profile materials (e.g. aluminium/window profiles).

  • High quality of drill holes and significantly longer service life compared to conventional twist wood drill bits for drilling holes in wood.

  • Ideal for high-precision, comfortable and quick work in solid materials (e.g. in steel with strength of up to 1000 N/mm², aluminium and plastics).

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 338 / 5xD

Diameter (Ø)

10.0 mm

Length (l1)

133 mm

Chip flute length (l2)

87 mm

Drill tip length (l3)

10.0 mm

Shank style

3-face shank

Surface

Multiple refined

Cutting material

HSS

Type

SMART STEP

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, Cast iron, Ductile iron, Malleable cast iron, Magnesium alloys, Copper, low-alloyed, Brass, short-chipping, Brass, long-chipping, Plastics, thermoset, Plastics, thermoplastic

Legend
vc = 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 dia. 12.5
Material designation Tensile strength From dia. 12.5
vc n f
from to from to
Steels
General structural steels ≤ 850 N/mm² 25 37 796 955 0,250
Unalloyed heat-treated steels ≤ 850 N/mm² 25 37 796 955 0,250
Low-alloy heat-treated steels ≤ 850 N/mm² 25 37 796 955 0,250
Unalloyed heat-treated steels ≤ 1,000 N/mm² 22 31 700 796 0,200
Low-alloy heat-treated steels ≤ 1,000 N/mm² 22 31 700 796 0,200
Alloyed heat-treated steels ≤ 1,000 N/mm² 10 20 319 509 0,156
Nitriding steels ≤ 1,000 N/mm² 10 20 319 509 0,156
Tool steels ≤ 1,000 N/mm² 10 20 319 509 0,156
High-speed steels ≤ 1,000 N/mm² 10 20 319 509 0,156
Cast metals
Cast iron ≤ 350 HB 22 31 891 1,019 0,313
Spheroidal graphite and malleable iron ≤ 350 HB 22 31 700 796 0,313
Non-ferrous metal
Aluminium ≤ 600 N/mm² 40 60 1,019 1,528 0,250
Plastics
Plastics, thermosetting 20 37 636 955 0,250
Plastics, thermoplastic 20 37 636 955 0,250
Wood
Softwood 25 37 796 955 0,250
Hardwood
Hardwood 22 31 700 796 0,200
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
Steels
General structural steels ≤ 850 N/mm² 25 37 7,958 9,549 0,016 3,979 4,775 0,050 3,183 3,820 0,063
Unalloyed heat-treated steels ≤ 850 N/mm² 25 37 7,958 9,549 0,016 3,979 4,775 0,050 3,183 3,820 0,063
Low-alloy heat-treated steels ≤ 850 N/mm² 25 37 7,958 9,549 0,016 3,979 4,775 0,050 3,183 3,820 0,063
Unalloyed heat-treated steels ≤ 1,000 N/mm² 22 31 7,003 7,958 0,014 3,501 3,979 0,040 2,801 3,183 0,050
Low-alloy heat-treated steels ≤ 1,000 N/mm² 22 31 7,003 7,958 0,014 3,501 3,979 0,040 2,801 3,183 0,050
Alloyed heat-treated steels ≤ 1,000 N/mm² 10 20 3,183 5,093 0,012 1,592 2,546 0,032 1,273 2,037 0,040
Nitriding steels ≤ 1,000 N/mm² 10 20 3,183 5,093 0,012 1,592 2,546 0,032 1,273 2,037 0,040
Tool steels ≤ 1,000 N/mm² 10 20 3,183 5,093 0,012 1,592 2,546 0,032 1,273 2,037 0,040
High-speed steels ≤ 1,000 N/mm² 10 20 3,183 5,093 0,012 1,592 2,546 0,032 1,273 2,037 0,040
Cast metals
Cast iron ≤ 350 HB 22 31 8,913 10,186 0,018 4,456 5,093 0,063 3,565 4,074 0,080
Spheroidal graphite and malleable iron ≤ 350 HB 22 31 7,003 7,958 0,018 3,501 3,979 0,063 2,801 3,183 0,080
Non-ferrous metal
Aluminium ≤ 600 N/mm² 40 60 12,732 19,099 0,018 6,366 9,549 0,063 5,093 7,639 0,080
Plastics
Plastics, thermosetting 20 37 6,366 9,549 0,016 3,183 4,775 0,050 2,546 3,820 0,063
Plastics, thermoplastic 20 37 4,777 9,549 0,016 3,183 4,775 0,050 2,546 3,820 0,063
Wood
Softwood 25 37 7,958 9,549 0,016 3,979 4,775 0,050 3,183 3,820 0,063
Hardwood
Hardwood 22 31 7,003 7,958 0,014 3,501 3,979 0,040 2,801 3,183 0,050
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
Steels
General structural steels ≤ 850 N/mm² 25 37 1,642 1,971 0,163 1,294 1,552 0,208 1,035 1,242 0,260
Unalloyed heat-treated steels ≤ 850 N/mm² 25 37 1,642 1,971 0,163 1,294 1,552 0,208 1,035 1,242 0,260
Low-alloy heat-treated steels ≤ 850 N/mm² 25 37 1,642 1,971 0,163 1,294 1,552 0,208 1,035 1,242 0,260
Unalloyed heat-treated steels ≤ 1,000 N/mm² 22 31 1,446 1,642 0,130 1,138 1,294 0,163 910 1,035 0,208
Low-alloy heat-treated steels ≤ 1,000 N/mm² 22 31 1,446 1,642 0,130 1,138 1,294 0,163 910 1,035 0,208
Alloyed heat-treated steels ≤ 1,000 N/mm² 10 20 657 1,050 0,104 517 828 0,130 413 662 0,163
Nitriding steels ≤ 1,000 N/mm² 10 20 657 1,050 0,104 517 828 0,130 413 662 0,163
Tool steels ≤ 1,000 N/mm² 10 20 657 1,050 0,104 517 828 0,130 413 662 0,163
High-speed steels ≤ 1,000 N/mm² 10 20 657 1,050 0,104 517 828 0,130 413 662 0,163
Cast metals
Cast iron ≤ 350 HB 22 31 1,840 2,102 0,208 1,448 1,655 0,260 1,158 1,325 0,325
Spheroidal graphite and malleable iron ≤ 350 HB 22 31 1,446 1,642 0,208 1,138 1,294 0,260 910 1,035 0,325
Non-ferrous metal
Aluminium ≤ 600 N/mm² 40 60 2,021 3,032 0,160 1,592 2,387 0,200 1,273 1,910 0,250
Plastics
Plastics, thermosetting 20 37 1,314 1,971 0,163 1,035 1,552 0,208 828 1,242 0,260
Plastics, thermoplastic 20 37 1,314 1,971 0,163 1,035 1,552 0,208 828 1,242 0,260
Wood
Softwood 25 37 1,642 1,971 0,163 1,294 1,552 0,208 1,035 1,242 0,260
Hardwood
Hardwood 22 31 1,446 1,642 0,130 1,138 1,294 0,163 910 1,035 0,208
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
Steels
General structural steels ≤ 850 N/mm² 25 37 2,526 3,032 0,080 1,989 2,387 0,100 1,831 2,197 0,115
Unalloyed heat-treated steels ≤ 850 N/mm² 25 37 2,526 3,032 0,080 1,989 2,387 0,100 1,831 2,197 0,115
Low-alloy heat-treated steels ≤ 850 N/mm² 25 37 2,526 3,032 0,080 1,989 2,387 0,100 1,831 2,197 0,115
Unalloyed heat-treated steels ≤ 1,000 N/mm² 22 31 2,223 2,526 0,063 1,751 1,989 0,080 1,611 1,831 0,092
Low-alloy heat-treated steels ≤ 1,000 N/mm² 22 31 2,223 2,526 0,063 1,751 1,989 0,080 1,611 1,831 0,092
Alloyed heat-treated steels ≤ 1,000 N/mm² 10 20 1,011 1,617 0,050 796 1,273 0,063 733 1,172 0,072
Nitriding steels ≤ 1,000 N/mm² 10 20 1,011 1,617 0,050 796 1,273 0,063 733 1,172 0,072
Tool steels ≤ 1,000 N/mm² 10 20 1,011 1,617 0,050 796 1,273 0,063 733 1,172 0,072
High-speed steels ≤ 1,000 N/mm² 10 20 1,011 1,617 0,050 796 1,273 0,063 733 1,172 0,072
Cast metals
Cast iron ≤ 350 HB 22 31 2,829 3,234 0,100 2,228 2,546 0,125 2,050 2,343 0,144
Spheroidal graphite and malleable iron ≤ 350 HB 22 31 2,223 2,526 0,100 1,751 1,989 0,125 1,611 1,831 0,144
Non-ferrous metal
Aluminium ≤ 600 N/mm² 40 60 4,042 6,063 0,100 3,183 4,775 0,125 2,546 3,820 0,125
Plastics
Plastics, thermosetting 20 37 2,021 3,032 0,080 1,592 2,387 0,100 1,464 2,197 0,115
Plastics, thermoplastic 20 37 2,021 3,032 0,080 1,592 2,387 0,100 1,464 2,197 0,115
Wood
Softwood 25 37 2,526 3,032 0,080 1,989 2,387 0,100 1,831 2,197 0,115
Hardwood
Hardwood 22 31 2,223 2,526 0,063 1,751 1,989 0,080 1,611 1,831 0,092
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