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0 votes
1 answer
107 views

Color-code Screwdriver Bits to size instead of type? [closed]

is there some manufacture that Color-code Screwdriver Bits to size instead of type ? my uncle is 87 years he can see its a torx but not if its T20 or T25, same whit phillips/pozi the most used ones ...
Johan Andersson's user avatar
0 votes
1 answer
150 views

Adapter for 1/4" electric screwdriver to hold 3/8" bit

I have a screw driver that supports 1/4" bits. I also got a hole saw , but it's apparently 3/8" hex. Is there anything that can adapt one to another? I need to cut a few holes in very soft ...
Merlin's user avatar
  • 1
24 votes
6 answers
5k views

What is the right tool for old, rusty, flat cross head bolts?

I'm trying to restore an old park bench, and I am struggling to unscrew the bolts. The heads have this wide (~12-14 mm) "flat cross" pattern that I have never seen before (see photo), and I ...
Nicolas Payette's user avatar
4 votes
3 answers
3k views

Are impact driver bits a different standard than screwdriver bits?

I bought a Milwaukee M4 cordless screwdriver (Milwaukee 2101-22) from Home Depot. Home Depot has plenty of Milwaukee screwdriver bits and I bought a set. The bits are too short. The head of the bit ...
steveha's user avatar
  • 267
2 votes
0 answers
396 views

4mm hex shank to 1/4" hex shank adapter [closed]

I have a screwdriver which uses interchangeable bits and a magnet to hold them in place. The screwdriver takes 4mm hex shank sized bits. It seems this shank size is really rare, because I can't find ...
ExecutionByFork's user avatar
3 votes
2 answers
2k views

Want to know how hex bit shank works and the history behind it's design

I have tried to search this in google but I haven't found a complete explanation, so I ask this here. I also have read other answers related with hex bit socket, but it still not satisfied. How the ...
Donny Kurnia's user avatar
0 votes
2 answers
240 views

Can I use Wiha "Micro Bit" bits with regular 1/8'' hex screwdriver?

Wiha says their micro bits are 4mm in diameter, and suggests to use special adapter for 1/4 screwdriver. Obviously these 4mm micro bits are smaller than 1/4 inch, but are they compatible with 1/8 hex ...
vahotm's user avatar
  • 101
2 votes
1 answer
763 views

How do I adapt my spiral ratcheting screwdriver to use with all bits?

I have a spiral ratcheting screwdriver like the one shown below. I want to adapt it to use with all kinds of bits. This basically means putting a 1/4" hex socket on the other end. Fig.1. Yankee ...
Mowzer's user avatar
  • 345
0 votes
1 answer
633 views

Bit holder or hex chuck?

A novice DIY-er, I'm building out my arsenal of tools. One of the things that has been possible me is the bit holder vs the hex chuck. When buying bits, so far I've gone for the Irwin impact-ready ...
Rob de Jonge's user avatar
1 vote
1 answer
144 views

Building a well-rounded set of bits

First and foremost, please my ignorance as I'm new to the whole DIY thing. I bought a cheap set of drill bits, munched through them like butter, and so have now decided to make the investment into a ...
Rob de Jonge's user avatar