Step Drill Bits

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IRWIN INDUSTRIAL TOOLS -

Cobalt Step Drill Bit

StyleModelNumber Of Hole SizesBit LengthShank SizeSizeSizes IncludedSize RangeStep ThicknessMaterialPrice
A10239cb23 1/8"7/16"7/8" to 1 1/8"7/8", 1-1/8"7/8" to 1 1/8"-Cobalt€211.02
A10232cb63 1/8"1/4"3/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"3/16" to 1/2"1/16"Cobalt€73.54
A10220cb83"7/16"9/16" to 1"1", 11/16", 13/16", 15/16", 3/4", 5/8", 7/8", 9/16"9/16" to 1"1/8"Cobalt€145.98
A10233cb92 3/4"3/8"1/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"1/4" to 3/4"1/16"Cobalt€130.47
A10234cb123 1/4"3/8"3/16" to 7/8"3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"3/16" to 7/8"1/16"Cobalt€146.80
A10231cb133 1/8"1/4"1/8" to 1/2"1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"1/8" to 1/2"1/32"Cobalt€75.98
RUKO -

Titanium Coated Self-Starting Step Drill Bits

StyleModelNumber Of Hole SizesMaximum Hole SizeStep IncrementsImpact RatedPrimary Material ApplicationPrice
A101706T-----€158.40
B101705T-----€100.80
C101702T-----€67.50
D101703T-----€84.60
E101709T-----€131.40
F101708T17/8"3/4"NoBrass, Plastic, Steel€89.10
G101701T61/2"1/16"NoBrass, Plastic, Steel€62.10
H101704T127/8"1/16"NoBrass, Plastic, Steel€95.40
RUKO -

Step Drill Bits

StyleModelMaterialFinishNumber Of Hole SizesDecimal EquivalentShank Dia.Max. Drilling DepthMaximum Hole SizeMinimum Hole SizePrice
A101002ECobaltBright, Uncoated20.1, 0.78 mm0.156"0.781"0.156"€88.41
B101001ECobaltBright, Uncoated20.1, 0.56 mm0.562"0.562"1/8"€30.45
C101020EROCobaltBright, Uncoated60.1, 0.5, 0.6, 0.7, 1.16 mm, 8 mm, 9 mm5/32", 9/16", 5/8"9/16", 25/32", 1 3/16"1/8"€177.02
D101008ECobaltBright, Uncoated20.2, 1.29 mm0.188"1.219"0.203"€79.21
E101020ECobaltBright, Uncoated63, 4, 14, 16, 20, 306 mm, 8 mm, 9 mm3 mm, 4 mm, 16 mm14 mm, 20 mm, 30.5 mm3 mm€136.55
F101004ECobaltBright, Uncoated20.9, 1.510 mm0.938"1.562"0.938"€120.71
G101003ECobaltBright, Uncoated20.6, 1.19 mm5/8"1.188"5/8"€70.98
H101007FHigh Speed SteelTiAlN20.2, 1.210 mm0.188"1.219"0.203"€170.71
I101020THigh Speed SteelTin63, 4, 14, 16, 20, 306 mm, 8 mm, 9 mm3 mm, 4 mm, 16 mm14 mm, 20 mm, 30.5 mm3 mm€120.28
J101363High Speed SteelBright, Uncoated1130, 31, 32, 33, 34, 35, 36, 37, 38, 39, 4010 mm30 mm40 mm30 mm€162.38
K101001FHigh Speed SteelTiAlN20.1, 0.56 mm0.562"0.562"1/8"€120.86
L101020TROHigh Speed SteelTin60.1, 0.5, 0.6, 0.7, 1.16 mm, 8 mm, 9 mm5/32", 9/16", 5/8"9/16", 25/32", 1 3/16"1/8"€142.02
M101022THigh Speed SteelTin20.2, 0.88 mm0.188"7/8"0.203"€145.97
N101022FHigh Speed SteelBright, Uncoated20.2, 0.88 mm0.188"7/8"0.203"€173.40
O101001THigh Speed SteelTin20.1, 0.56 mm0.562"0.562"1/8"€48.42
P101007THigh Speed SteelTin20.2, 1.210 mm0.188"1.219"0.203"€50.01
F101004FHigh Speed SteelTiAlN20.9, 1.510 mm0.938"1.562"0.938"€191.01
Q101008THigh Speed SteelTin20.2, 1.29 mm0.188"1.219"0.203"€71.25
R101002FHigh Speed SteelTiAlN20.1, 0.78 mm0.156"0.781"0.156"€103.27
S101362High Speed SteelBright, Uncoated1120, 21, 22, 23, 24, 25, 26, 27, 28, 29, 3010 mm20 mm30 mm20 mm€120.88
H101007High Speed SteelBright, Uncoated20.2, 1.210 mm0.188"1.219"0.203"€33.83
T101004THigh Speed SteelTin20.9, 1.510 mm0.938"1.562"0.938"€119.38
D101008High Speed SteelBright, Uncoated20.2, 1.29 mm0.188"1.219"0.203"€44.33
N101022High Speed SteelBright, Uncoated20.2, 0.88 mm0.188"7/8"0.203"€185.64
U101002THigh Speed SteelTin20.1, 0.78 mm0.156"0.781"0.156"€147.17
LENOX TOOLS -

Step Drill Bits

StyleModelNumber Of Hole SizesDrill Bit Sizes IncludedDecimal EquivalentShank Dia.Max. Drilling DepthImpact RatedMaximum Hole SizeMinimum Hole SizePrice
A30887VB717/8"0.8751/4"1"Yes7/8"7/8"€98.83
RFQ
B30912VB1257/8", 1 1/8", 1 7/32", 1 1/4", 1 3/8"0.2187, 0.875, 1.125, 1.25, 1.3753/8"1"No1 3/8"7/8"€184.90
RFQ
C30884VB463/16", 1/4", 5/16", 3/8", 7/16", 1/2"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.51/4"1"No1/2"0.188"€70.67
D30883VB391/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"0.71/4"1.594"Yes3/4"1/4"€95.88
IRWIN INDUSTRIAL TOOLS -

Step Drill Bits

StyleModelNumber Of Hole SizesDecimal EquivalentMaximum Hole SizeMinimum Hole SizeStep IncrementsMaterialFinishShank Dia.Price
A10311ZR10.8757/8"7/8"5/32"High Speed SteelBlack Oxide3/8"€59.82
B11105ZR130.1969, 0.2953, 0.3937, 0.5118, 0.6299, 0.748, 0.8268, 0.9055, 1.0236, 1.1417, 1.2205, 1.2992, 1.37835 mm5 mm2 mmHigh Speed SteelBlack Oxide3/8"€160.10
C10502ZR170.125, 0.1563, 0.1875, 0.2188, 0.25, 0.2813, 0.3125, 0.3438, 0.375, 0.4063, 0.4375, 0.4688, 0.5, 0.5625, 0.625, 0.6875, 0.753/4"1/8"-High Speed SteelBlack Oxide3/8"€126.87
CLE-LINE -

Step Drill Bits

StyleModelFinishNumber Of Hole SizesDrill Bit Sizes IncludedDecimal EquivalentShank Dia.Maximum Hole SizeMinimum Hole SizeStep IncrementsPrice
AC20287Bright, Uncoated91/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"0.25, 0.753/8"3/4"1/4"1/16"€56.17
AC20293Bright, Uncoated151/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1 1/16", 1 1/8"0.875, 1.1253/8"1 1/8"1/4"1/16"€94.14
BC20298Tin123/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"0.1875, 0.8753/8"7/8"0.188"1/16"€96.73
BC20296Tin131/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"0.125, 0.51/4"1/2"1/8"1/32"€59.50
CLEVELAND -

Step Drill Bits

StyleModelFinishNumber Of Hole SizesDrill Bit Sizes IncludedDecimal EquivalentShank Hex SizeMax. Drilling DepthPrimary Material ApplicationMaximum Hole SizePrice
AC20301Black Oxide59/16", 5/8", 11/16", 3/4", 13/16"0.5625, 0.625, 0.6875, 0.75, 0.81253/8"1/2"Structual Steel0.812"€117.01
AC20302Black Oxide513/16", 7/8", 15/16", 1", 1 1/16"0.8125, 0.875, 0.9375, 1, 1.06253/8"1/2"Structual Steel1.062"€133.44
BC20303Black Oxide155/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1 1/16"0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.875, 0.9375, 1, 1.06253/8"1/2"Structual Steel1.062"€349.80
AC20300Black Oxide55/16", 3/8", 7/16", 1/2", 9/16"0.3125, 0.375, 0.4375, 0.5, 0.56253/8"1/2"Structual Steel0.562"€107.50
CC20311Bright, Uncoated131/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"0.125, 0.1562, 0.1875, 0.2187, 0.25, 0.2812, 0.3125, 0.3437, 0.375, 0.4062, 0.4375, 0.4687, 0.51/4"0.094"Sheet Metal1/2"€67.32
CC20310Bright, Uncoated63/16", 1/4", 5/16", 3/8", 7/16", 1/2"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.51/4"9/32", 3/8"Sheet Metal1/2"€54.26
DC20312Tin63/16", 1/4", 5/16", 3/8", 7/16", 1/2"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.51/4"9/32", 3/8"Sheet Metal1/2"€60.69
DC20313Tin131/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"0.125, 0.1562, 0.1875, 0.2187, 0.25, 0.2812, 0.3125, 0.3437, 0.375, 0.4062, 0.4375, 0.4687, 0.51/4"0.094"Sheet Metal1/2"€74.46
RUKO -

Cobalt 5 Self-Starting Step Drill Bits

StyleModelNumber Of Hole SizesMaximum Hole SizeStep IncrementsImpact RatedPrice
A101707E----€52.20
RFQ
B101702E----€60.30
C101709E----€113.40
D101704E----€82.80
E101706E51 3/8"3/16"No€140.40
F101701E61/2"1/16"No€52.20
G101703E93/4"1/16"No€73.80
H101705E101"3/16"No€87.30
RUKO -

HSS Self-Starting Step Drill Bits

StyleModelNumber Of Hole SizesMaximum Hole SizeStep IncrementsImpact RatedPrice
A101703----€53.10
B101707----€42.30
RFQ
C10170817/8"3/4"No€63.90
D10170921 1/8"3/4"No€82.80
E10170651 3/8"3/16"No€102.60
F10170161/2"1/16"No€36.90
G101705101"3/16"No€72.90
H101704127/8"1/16"No€72.00
I101702131/2"1/32"No€43.20
DEWALT -

Titanium Impact Ready Step Drill Bit

StyleModelNumber Of Hole SizesBit LengthStep ThicknessSizeMaterialFinishShank Hex SizeMax. Drilling DepthPrice
ADWA1784IR63 1/2"3/8"3 1/2"TitaniumTitanium--€57.64
BDWA1786IR123 2/5"0.156"3 7/8"TitaniumTitanium1/4"1"€118.18
MILWAUKEE -

Step Drill Bits

StyleModelFinishNumber Of Hole SizesShank Dia.Impact RatedPrimary Material ApplicationDecimal EquivalentMaximum Hole SizeMinimum Hole SizePrice
A48-89-9321Black Oxide93/8"NoPlastic, Steel7, 9, 12.5, 15.2, 18.6, 20.4, 22.5, 25.5, 28.328 mm7 mm€111.35
B48-89-9239Black Oxide163/8"NoPlastic, Steel0.125, 0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.6875, 0.8125, 0.875, 0.9375, 1, 1.0625, 1.1251 1/8"7/8"€332.98
C48-89-9335Black Oxide153/8"NoPlastic, Steel6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 3535 mm6 mm€174.03
D48-89-9399Black Oxide321/4", 3/8"NoPlastic, Steel-35 mm4 mm€313.82
E48-89-9291Black Oxide171/4", 3/8"NoAll Materials0.125, 0.1562, 0.1875, 0.2187, 0.25, 0.2812, 0.3125, 0.3437, 0.375, 0.4062, 0.4375, 0.4687, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.8757/8"1/8"€383.76
F48-89-9320Black Oxide93/8"NoPlastic, Steel4, 6, 8, 10, 12, 14, 16, 18, 2020 mm4 mm€100.36
G48-89-9234Black Oxide123/8"NoPlastic, Steel0.125, 0.1563, 0.1875, 0.2188, 0.25, 0.2813, 0.3125, 0.3438, 0.375, 0.4063, 0.4375, 0.4688, 0.57/8"0.188"€249.84
H48-89-9332Black Oxide133/8"NoPlastic, Steel5, 8.5, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5, 23.5, 25.5, 28.5, 30.5, 32.532.5 mm5 mm€224.45
I48-89-9301Black Oxide91/4"NoPlastic, Steel4, 5, 6, 7, 8, 9, 10, 11, 1212 mm4 mm€61.97
J48-89-9281Bright, Uncoated133/8"NoPlastic, Steel0.1, 0.2, 0.3, 0.4, 0.51/2"1/8"€85.05
K48-89-9284Bright, Uncoated123/8"NoPlastic, Steel0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.87/8"0.188"€123.16
L48-89-9289Bright, Uncoated23/8"NoPlastic, Steel0.8, 1.11 1/8"7/8"€172.14
M48-89-9242TiAlN61/4"YesAluminum, Steel0.1875, 0.51/2"0.188"€71.45
N48-89-9249TiAlN21/4"YesAluminum, Steel0.875, 1.1251 1/8"7/8"€113.92
O48-89-9243TiAlN101/4"YesAluminum, Steel0.1875, 0.753/4"0.188"€83.17
P48-89-9256TiAlN241/4"YesPlastic, Steel0.125, 0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.875, 11"1/8"€273.11
Q48-89-9244TiAlN121/4"YesAluminum, Steel0.1875, 0.8757/8"0.188"€84.20
R48-89-9241TiAlN131/4"YesAluminum, Steel0.125, 0.51/2"1/8"€51.41
S48-89-9257TiAlN271/4"YesPlastic, Steel0.125, 0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.6875, 0.8125, 0.875, 0.9375, 1, 1.0625, 1.1251 1/8"1/8"€255.12
T48-89-9248TiAlN91/4"YesAluminum, Steel0.125, 11"1/2"€109.14
U48-89-9254TiAlN311/4"YesPlastic, Steel0.125, 0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.8757/8"1/8"€218.14
MILWAUKEE -

High Speed Steel Step Drill Bit

StyleModelNumber Of Hole SizesBit LengthShank SizeStep ThicknessMaterialFinishNumber Of FlutesSizes IncludedPrice
A48-89-920712.203"3/8"1/8"High Speed SteelBlack Oxide2-€91.97
B48-89-920622.031"1/4"0.156"High Speed SteelBlack Oxide2-€47.67
C48-89-920922.953"3/8"1/8"High Speed SteelBlack Oxide27/8", 1-1/8"€97.47
D48-89-921133.047"3/8"1/8"High Speed SteelBlack Oxide2-€121.71
E48-89-921253.062"3/8"3/16"High Speed SteelBlack Oxide2-€120.90
F48-89-920263.078"1/4"3/8"High Speed SteelBlack Oxide2-€59.56
G48-89-920392.578"3/8"0.156"High Speed SteelBlack Oxide2-€73.24
H48-89-920893.266"3/8"3/16"High Speed SteelBlack Oxide2-€92.79
I48-89-9205103.047"3/8"3/16"High Speed SteelBlack Oxide2-€152.87
J48-89-9204122.953"3/8"0.156"High Speed SteelBlack Oxide2-€77.53
F48-89-9201133.109"1/4"0.156"High Speed SteelBlack Oxide2-€40.33
WESTWARD -

HSS M2 Step Drill Bit

StyleModelNumber Of Hole SizesBit LengthStep ThicknessMaximum Hole SizeFinishImpact RatedPrimary Material ApplicationMax. Drilling DepthPrice
A19N14153 1/4"1/16"-Bright FinishNoSteel-€115.85
B19N14293 1/4"1/16"1"Bright FinishNoSteel3 1/4"€83.72
C19N12492 3/4"1/16"3/4"Bright FinishNoSteel-€59.17
D19N127123 1/4"1/16"7/8"Bright FinishNoSteel3 1/4"€75.44
DEWALT -

Impact Ready Step Drill Bit Set

StyleModelNumber Of Hole SizesStep ThicknessSizeMaterialFinishShank Hex SizeMax. Drilling DepthImpact RatedPrice
ADWA1789IR20.156"7 1/8"TitaniumTitanium---€172.19
BDWA1783IR130.156"1 1/2"TitaniumTitanium1/4"1"Yes€56.43
LENOX TOOLS -

High-Speed Steel Step Drill Bits

Lenox high-speed step drill bits are used for drilling hardwood & metals. They feature high-speed steel (HSS) construction, with steam oxide coated surface providing excellent wear resistance. The enhanced flute design cuts faster, burr-free holes and eliminates chips rapidly. They come with split point tip design and three-side ground flat shanks providing increased chunk grip. Choose from a wide range of step drill bits in sizes of 1/2 to 1 inch, 1/8 to 1/2 inches and 7/8 to 1-1/8 inches, on Raptor Supplies.

StyleModelNumber Of Hole SizesBit LengthShank SizeStep ThicknessMaterialFinishNumber Of FlutesSizes IncludedPrice
A30888VB1122 3/4"3/8"-High Speed SteelBlack Oxide27/8", 1-1/8"€142.65
B30882VB293"3/8"0.062"High Speed SteelBlack Oxide2-€108.90
C30881VB1133"1/4"0.031"High Speed SteelBlack Oxide2-€57.14
IRWIN INDUSTRIAL TOOLS -

High Speed Steel Step Drill Bit

StyleModelFinishNumber Of Hole SizesBit LengthShank SizeSizeSizes IncludedSize RangeStep ThicknessPrice
AUNIBIT 3Bright92 3/4"3/8"1/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"1/4" to 3/4"1/16"€76.97
BUNIBIT 10Bright11 3/4"1/4"1/2"1/2"1/2"-€42.24
CUNIBIT 13Bright12 7/8"7/16"1.125"1.125"1 1/8"-€109.88
DUNIBIT 11Bright12.593"3/8"7/8"7/8"7/8"-€56.31
EUNIBIT 4Bright123 1/4"3/8"3/16" to 7/8"3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"3/16" to 7/8"1/16"€98.16
FUNIBIT 1Bright133 1/8"1/4"1/8" to 1/2"1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"1/8" to 1/2"1/32"€42.72
GUNIBIT 20Bright83"7/16"9/16" to 1"1", 11/16", 13/16", 15/16", 3/4", 5/8", 7/8", 9/16"9/16" to 1"1/8"€87.79
HUNIBIT 2Bright63 1/8"1/4"3/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"3/16" to 1/2"1/16"€42.72
I10239Steam Oxide23 1/8"7/16"7/8" to 1 1/8"7/8", 1-1/8"7/8" to 1 1/8"-€143.77
J15102Tin Coat63 1/8"1/4"3/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"3/16" to 1/2"1/16"€68.57
K15104Tin Coat123 1/4"3/8"3/16" to 7/8"3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"3/16" to 7/8"1/16"€163.27
L15101Tin Coat133 1/8"1/4"1/8" to 1/2"1/8", 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2"1/8" to 1/2"1/32"€72.38
M15103Tin Coat92 3/4"3/8"1/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"1/4" to 3/4"1/16"€108.69
KLEIN TOOLS -

Step Drill Bit

StyleModelMPNPrice
AKTSB01KTSB01€51.44
BKTSB03KTSB03€67.66
CKTSB11KTSB11€90.93
DKTSB14KTSB14€79.07
EKTSB15KTSB15€122.11
WESTWARD -

HSS w/Oxide Coated Finish Step Drill Bit Set

StyleModelNumber Of Hole SizesBit LengthStep ThicknessStep IncrementsMaximum Hole SizeMaterialFinishImpact RatedPrice
A6EXN633"3/8"3/8"-High Speed SteelBlack OxideNo€111.33
B6EXN5103"1/8"1/16"-High Speed SteelBlack OxideNo€162.34
C6EXN4123 1/2"1/8"1/16"7/8"High Speed SteelBlack OxideNo€70.95
D6EXN3133 3/8"1/8"1/32"1/2"High Speed SteelBlack OxideNo€29.34
IRWIN INDUSTRIAL TOOLS -

Step Drill 10 Hole Sizes 1/4-1 3/8

ModelItemPrice (ex. VAT)
10235AD2VCD€211.23
GREENLEE -

Step Bit Set

ModelItemPrice (ex. VAT)
GSBSET3CR3LJF€314.08

Step Drill Bits

We stock a wide range of high-quality step drill bits from Dewalt, Easypower, Irwin, Lenox, Milwaukee and Westward. These step drill bits use a single bit to drill different-sized holes in thin and soft metals, and to enlarge holes. They are available in high-speed steel, cobalt or titanium variants featuring hex or round shanks and a single / double- / three-flute cutting edge.
You can use titanium Impact Ready step drill bits to drill holes in cast-iron, steel, aluminium, copper, brass and plexiglass. They feature a split-point tip to increase speed, laser engraved numbers to maximise step visibility and double-flute spiral design for excellent chip removal. These titanium drill bits last six times longer than high-speed steel bits.