|Item Weight||8 ounces|
|Product Dimensions||6 x 1 x 4 inches|
|Item Package Quantity||1|
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New 21pc Mini Micro-drill Bits Set Index 61-80 w/ Aluminum Hand Drill
|Price:||$6.71 & FREE Shipping|
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Product Description- The set includes 20pc HSS twist drill bits in storage plastic case and an aluminum hand drill 20pc index bit set includes the following sizes: #80 (.0135") #70 (.0280") #79 (.0145") #69 (.0292") #78 (.0160") #68 (.0310") #77 (.0180") #67 (.0320") #76 (.0200") #66 (.0330") #75 (.0210") #65 (.0350") #74 (.0225") #64 (.0360") #73 (.0240") #63 (.0370") #72 (.0250") #62 (.0380") #71 (.0260") #61 (.0390") High quality tool for the professionals Great for electronics, crafts, jewelry, watch making The latest version of the set might vary slightly from the original manufacturer from time to time, please refer to the updated displaying picture Please note this is not a battery powered drill
Top customer reviews
Alternatively, make a shank size adapter so that the drill tool clamps the drill bit into a collar that prevents the bit from bending if it gets off-center while drilling. (Essentially an adjustable drill clamp that clamps on all of the bit except the first 0.1" and then is clamped and held in the drill.) Then drill 0.1", re-clamp and drill another 0.1" repeating until the hole is drilled through. The drill bits are too weak to use without some form of protection like this especially if you are drilling hard material. And don't even think of drilling anything of greater thickness w/o some form of vertical motion control similar to a drill press.
The drill tool is very poor and will hardly hold the smallest diameter drill bits. I had to take the drill apart and clean the threads, etc., of all of the metal stuff left after manufacture to get it to even clamp on the drill bits. The drill bit shanks should be larger with some kind of adjustment to keep the drill end from breaking off (see first two paragraphs).
This is not a normal set of drill bits folks. If you look for something to make the tiniest of holes, then this is for you.