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HSS Step Twist Drill Bits

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Product Abstract:

Step drill bits are used to drill metal up to 1/4 of an inch thick. Step drill bits are designed to enlarge a hole as the bit drills through the sheet metal. Each step on the bit is larger in diameter than the step before


Product Description

 

Size(mm) O. L(mm) F.L(mm)   Size(mm) O. L(mm) F.L(mm)
6 93 57   11.2 142 94
6.1 101 63   11.3 142 94
6.2 101 63   11.4 142 94
6.3 101 63   11.5 142 94
6.4 101 63   11.6 142 94
6.5 101 63   11.7 142 94
6.6 101 63   11.8 142 94
6.7 101 63   11.9 151 101
6.8 109 69   12 151 101
6.9 109 69   12.1 151 101
7 109 69   12.2 151 101
7.1 109 69   12.3 151 101
7.2 109 69   12.4 151 101
7.3 109 69   12.5 151 101
7.4 109 69   12.6 151 101
7.5 109 69   12.7 151 101
7.6 117 75   12.85 151 101
7.7 117 75   12.9 151 101
7.8 117 75   13 151 101
7.9 117 75   13.1 151 101
8 117 75   13.2 151 101
8.1 117 75   13.3 160 108
8.2 117 75   13.4 160 108
8.3 117 75   13.5 160 108
8.4 117 75   13.6 160 108
8.5 117 75   13.7 160 108
8.6 125 81   13.8 160 18
8.7 125 81   13.9 160 108
8.8 125 81   14 160 108
8.9 125 81   14.25 169 114
9 125 81   14.5 169 114
9.1 125 81   14.75 169 114
9.2 125 81   15 169 114
9.3 125 81   15.25 178 120
9.4 125 81   15.5 178 120
9.5 125 81   15.75 178 120
9.6 133 68   16 178 120
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