IRWIN INDUSTRIAL TOOLS Step Drill Bits

Cobalt / high-speed steel step drill bits designed to drill or enlarge holes in aluminium, brass, copper, PVC, steel or wood. Feature a single-flute cutting edge and a Speedpoint tip, and come in different shank sizes and bit lengths

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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"€64.09
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"€171.54
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"€154.05
IRWIN INDUSTRIAL TOOLS -

Cobalt Step Drill Bit

StyleModelNumber Of Hole SizesDrill Bit Sizes IncludedDecimal EquivalentShank Hex SizeMinimum Hole SizeBit LengthShank SizeStep IncrementsPrice
A10239cb27/8", 1-1/8"0.875, 1.125-7/8"3 1/8"7/16"1/4"€226.09
A10232cb63/16", 1/4", 5/16", 3/8", 7/16", 1/2"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.51/4"3/16"3 1/8"1/4"1/16"€78.79
A10220cb89/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.875, 0.9375, 1-9/16"3"7/16"1/16"€156.41
A10233cb91/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.753/8"1/4"2 3/4"3/8"1/16"€139.79
A10234cb123/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.875-3/16"3 1/4"3/8"1/16"€157.28
A10231cb131/8", 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, 0.1563, 0.1875, 0.2188, 0.25, 0.2813, 0.3125, 0.3438, 0.375, 0.4063, 0.4375, 0.4688, 0.51/4"1/8"3 1/8"1/4"1/32"€81.41
IRWIN INDUSTRIAL TOOLS -

High Speed Steel Step Drill Bit

StyleModelFinishNumber Of Hole SizesDrill Bit Sizes IncludedDecimal EquivalentSizeSizes IncludedMinimum Hole SizeBit LengthPrice
AUNIBIT 1Bright131/8", 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, 0.1563, 0.1875, 0.2188, 0.25, 0.2813, 0.3125, 0.3438, 0.375, 0.4063, 0.4375, 0.4688, 0.51/8" 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"3 1/8"€45.77
BUNIBIT 20Bright89/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.875, 0.9375, 19/16" to 1"1", 11/16", 13/16", 15/16", 3/4", 5/8", 7/8", 9/16"9/16"3"€94.06
CUNIBIT 3Bright91/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.751/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"1/4"2 3/4"€82.47
DUNIBIT 2Bright63/16", 1/4", 5/16", 3/8", 7/16", 1/2"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.53/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"3/16"3 1/8"€45.77
EUNIBIT 10Bright1--1/2"1/2"-1 3/4"€45.25
FUNIBIT 11Bright17/8"0.8757/8"7/8"7/8"2.593"€60.33
GUNIBIT 13Bright11 1/8"1.251.125"1.125"1 1/8"2 7/8"€117.72
HUNIBIT 4Bright123/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.8753/16" 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"3 1/4"€105.17
I10239Steam Oxide27/8", 1-1/8"0.875, 1.1257/8" to 1 1/8"7/8", 1-1/8"7/8"3 1/8"€154.04
J15101Tin Coat131/8", 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, 0.1563, 0.1875, 0.2188, 0.25, 0.2813, 0.3125, 0.3438, 0.375, 0.4063, 0.4375, 0.4688, 0.51/8" 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"3 1/8"€82.26
K15102Tin Coat63/16", 1/4", 5/16", 3/8", 7/16", 1/2"0.125, 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, 0.75, 0.8125, 0.875, 0.9375, 1, 1.0625, 1.125, 1.1875, 1.25, 1.3125, 1.3753/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"1/8"-€73.47
L15103Tin Coat91/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.751/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"1/4"2 3/4"€116.45
M15104Tin Coat123/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8"0.1875, 0.25, 0.3125, 0.375, 0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75, 0.8125, 0.8753/16" 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"3 1/4"€174.93
IRWIN INDUSTRIAL TOOLS -

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

ModelItemPrice (ex. VAT)
10235AD2VCD€226.31