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HSS-E Cobalt twist drill bits | ||||||
Size(mm) | Total Length | Flute Length | Qty. in one Tube | |||
2.00 | 49 | 24 | 10 | |||
2.50 | 57 | 30 | 10 | |||
3.00 | 61 | 33 | 10 | |||
3.50 | 70 | 39 | 10 | |||
4.00 | 75 | 43 | 10 | |||
4.50 | 80 | 47 | 10 | |||
5.00 | 86 | 52 | 10 | |||
5.50 | 93 | 57 | 10 | |||
6.00 | 93 | 57 | 10 | |||
6.50 | 101 | 63 | 10 | |||
7.00 | 109 | 69 | 10 | |||
7.50 | 109 | 69 | 10 | |||
8.00 | 117 | 75 | 10 | |||
8.50 | 117 | 75 | 10 | |||
9.00 | 125 | 81 | 10 | |||
9.50 | 125 | 81 | 10 | |||
10.00 | 133 | 87 | 10 | |||
10.50 | 133 | 87 | 5 | |||
11.00 | 142 | 94 | 5 | |||
11.50 | 142 | 94 | 5 | |||
12.00 | 151 | 101 | 5 | |||
12.50 | 151 | 101 | 5 | |||
13.00 | 151 | 101 | 5 | |||












Q: Why choose us? A: 1.we are Alibaba Assessed 2 years Gold supplier. 2.we are a factory manufacturing the tools, best production capability, best quality control,best service 3.100% QC inspection before shipping, competitive price. Q: Can you help me design or modified the products as we request? A: We have a R&D capability and professional &efficient team, so custom service and OEM/ODM are welcomed. we will try our best to make it out as long as you have a good idea. Q: What about the after-sales service ? A: Our company is responsible for the supplied product within its usage life. Q: What about the samples? A: We can supply samples.But we should charge the sample fee. And we will return after order confirmed.Customer should be responsible for the shipping fee when they require specific delivery method. | ||||||||
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