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IRWIN INDUSTRIAL TOOLS High Speed Steel Step Drill Bit

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Design: Ensures True Starts Without Walking Even on Curved Surfaces , Material: High Speed Steel , Number of Flutes: 1 , Shank Type: Hex
StyleModelBit LengthFinishShank SizeSizeSize RangeSizes IncludedPrice
A
UNIBIT 10
1.75"Bright1/4"1/2"1/2" with Steps1/2"£37.97
B
15103
2.75"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"£97.66
C
UNIBIT 3
2.75"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"£69.16
D
UNIBIT 11
2.593Bright3/8"7/8"7/8" with Steps7/8"£55.66
E
UNIBIT 13
2.875"Bright7/16"1.125"1-1/8" with Steps1.125"£104.95
F
UNIBIT 20
3"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"£78.87
G
UNIBIT 4
3.25"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"£88.15
H
15104
3.25"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"£152.21
I
UNIBIT 1
3.125"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"£38.35
J
10239
3.125"Steam Oxide7/16"7/8 to 1-1/8"7/8" to 1-1/8"7/8", 1-1/8"£143.05
K
15101
3.125"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"£48.18
L
15102
3.125"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"£66.22
M
UNIBIT 2
3.125"Bright1/4"3/16 to 1/2"3/16" to 1/2"3/16", 1/4", 5/16", 3/8", 7/16", 1/2"£38.35

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