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

StyleModelItemPrice (inc. GST)
A10311ZRStep Drill BitA$ 94.97
B11105ZRStep Drill BitA$ 283.54
C10502ZRStep Drill Bit SetA$ 223.48
IRWIN INDUSTRIAL TOOLS -

Cobalt Step Drill Bit

StyleModelBit LengthShank SizeSizeSize RangeSizes IncludedPrice (inc. GST)
A10233cb2.75"3/8"1/4 to 3/4"1/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"A$ 217.71
A10220cb3"7/16"9/16 to 1"9/16" to 1"9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"A$ 238.70
A10234cb3.25"3/8"3/16 to 7/8"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"A$ 238.66
A10231cb3.125"1/4"1/8 to 1/2"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"A$ 120.43
A10232cb3.125"1/4"3/16 to 1/2"3/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"A$ 123.90
A10239cb3.125"7/16"7/8 to 1-1/8"7/8" to 1-1/8"7/8", 1-1/8"A$ 352.24
IRWIN INDUSTRIAL TOOLS -

High Speed Steel Step Drill Bit

StyleModelBit LengthFinishShank SizeSizeSize RangeSizes IncludedPrice (inc. GST)
AUNIBIT 101.75"Bright1/4"1/2"1/2" with Steps1/2"A$ 67.10
BUNIBIT 32.75"Bright3/8"1/4 to 3/4"1/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"A$ 122.21
C151032.75"TiN-Coated3/8"1/4 to 3/4"1/4" to 3/4"1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4"A$ 172.57
DUNIBIT 112.593Bright3/8"7/8"7/8" with Steps7/8"A$ 98.36
EUNIBIT 132.875"Bright7/16"1.125"1-1/8" with Steps1.125"A$ 185.46
FUNIBIT 203"Bright7/16"9/16 to 1"9/16" to 1"9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1"A$ 139.37
G151043.25"TiN-Coated3/8"3/16 to 7/8"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"A$ 268.97
HUNIBIT 43.25"Bright3/8"3/16 to 7/8"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"A$ 155.76
IUNIBIT 13.125"Bright1/4"1/8 to 1/2"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"A$ 67.76
JUNIBIT 23.125"Bright1/4"3/16 to 1/2"3/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"A$ 67.76
K102393.125"Steam Oxide7/16"7/8 to 1-1/8"7/8" to 1-1/8"7/8", 1-1/8"A$ 252.78
L151013.125"TiN-Coated1/4"1/8 to 1/2"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"A$ 85.14
M151023.125"TiN-Coated1/4"3/16 to 1/2"3/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"A$ 117.02
IRWIN INDUSTRIAL TOOLS -

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

ModelItemPrice (inc. GST)
10235AD2VCDA$ 332.68

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