Questions tagged [drill-bit]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
3 votes
2 answers
505 views

Tricks for fitting a 7/16" bit into a 3/8" drill?

I have a 3/8 hand-held drill and that's pretty much all I need for my projects. But now I have a project where I have to insert large dowels, and they will need a 7/16" hole. I don't have that ...
user avatar
2 votes
2 answers
1k views

Drill hole size for a given screw size in tile

I need to install a grab bar in a ceramic-tiled shower. I plan on drilling through the tile and screwing into studs (no anchors) with stainless steel screws. I know I need to use a carbide or diamond ...
user avatar
  • 125
0 votes
1 answer
45 views

Difference between Impact vs normal drill bits for Masonary with sufficient BPM impact

So a Disclaimer - This is not a product review (so please do not misunderstand the intent) I have got a trades-grade impact drill - DeWalt DCD795 which has enough torque and impact bpm to drill ...
user avatar
  • 103
0 votes
1 answer
79 views

Can't drill hole deep enough in concrete

I need to anchor a shed to cement or concrete with ⅜" x 3" anchor bolts.  I have a Bosch "long life in concrete" ⅜" bit.  The drill motor is medium-size but was able to get ...
user avatar
  • 161
0 votes
1 answer
78 views

Choosing pilot hole size for brick

I'm new to drilling but I've read up as much as I can. I need to drill some 8mm holes in brick (not the mortar) for 8mm rawlplugs. I'll be using a 550W Bosch corded hammer drill and I have a set of ...
user avatar
-1 votes
2 answers
93 views

How can I mount something heavy on a wall that's too hard to drill more than 1/2 inch

I am trying to mount a wooden trellis on my living room wall. The house was built in 1890 and later remodeled. Most interior walls are standard drywall with studs, but the exterior walls seem to be ...
user avatar
  • 1
1 vote
1 answer
85 views

What to do when drilling into steel has no effect? [closed]

I read a few online articles on drilling into metals. The advice is mostly the same: Predrill a smaller hole. Drill slowly — low rpm. No need for fancy equipment — any drill bit specialized for metal ...
user avatar
0 votes
3 answers
145 views

I need a drill for driving ground rods [closed]

I'm absolutely tired of renting here. I need a drill for driving ground rods and soil is moderately hard one I wanted to know how big/heavy drill I need for ground rods. 10-13 amps, and around 12-15 ...
user avatar
1 vote
2 answers
210 views

What diamond drill bit size is recommended for 1/2" pipes?

I have 2 pairs of copper stub outs (1/2") and one 1/2" PEX pipe that I need to drill holes in porcelain tiles I can't figure out what diamond drill bit size to order. This chart tells me I ...
user avatar
  • 2,823
-1 votes
1 answer
147 views

Not sure what drill bit to use for 6mm masonry anchor into brick

Similar to this question diy.stackexchange.com#q136613 but not sure exactly and I still don't know what I should do, so I'm opening a new one. I have a masonry anchor that is 6x30 and want to drill ...
user avatar
  • 143
0 votes
0 answers
34 views

Hilti TE2 locked without bit

I’ve got a Hilti TE2 and am unable to put the bit in. I think I might have accidentally locked the chuck without a bit in it and now unable to unlock it to put the bit in. Any ideas?
user avatar
  • 1
11 votes
4 answers
3k views

How can I drill my own electrical knockout?

I would like to drill a regular (I think 3/8") knockout on a metal appliance housing. It is not tabbed like on a metal handy box. Which drill bit should I use?
user avatar
  • 6,461
1 vote
1 answer
52 views

Drilling speed/pressure/coolant guide

I have been led to believe that it is very important to the performance of the job and the life of the bit to use the appropriate speeds, etc., when drilling various materials. I was about to purchase ...
user avatar
  • 267
0 votes
2 answers
104 views

Is it safe to use short bits from manual screwdriwer with electric drill?

Is it safe to use short bits (from manual screwdriver) with electric drill Ryobi R18PD3? Length of the hexagonal part (that fits into the drill) is 1.5cm. Original bits seems to be a bit:) longer. ...
user avatar
1 vote
0 answers
72 views

Is 6 holes in ceramic tiles the life of a drill bit?

I have always been unwilling to drill into ceramic tiles for fear of cracking them. But tomorrow, I am having a tile wall demolished, so I figured today I would get some drilling practice in while the ...
user avatar
0 votes
1 answer
115 views

Drilling out steel screws

What technique do I need to use for drilling out a steel screw? Might be stainless, not sure. I'm using a Milwaukee M18Fuel hand drill and Milwaukee cobalt bits. It's a powerful drill. I've made a ...
user avatar
  • 11
0 votes
1 answer
145 views

What do we call this drill bit?

I was looking at few videos on "how to screw in MDF". I found the one which I needeed. Unfortunately he didn't mention which drill bit he was using. Here is the photo of it. I am looking to ...
user avatar
1 vote
4 answers
217 views

Is a spade bit the right tool for burying a 3/8″ bolt in plywood?

Suddenly the two hardware stores near me have all sorts of varieties of spade bit sets from multiple manufacturers displayed in prominent aisles, which makes me wonder whether that's the reason I am ...
user avatar
  • 465
1 vote
1 answer
79 views

How can I tell if my tile is ceramic or porcelain?

I need to drill into some tile. How can I tell if it's ceramic or porcelain? I want to use the correct drill bit.
user avatar
-1 votes
1 answer
136 views

Is my electric impact drill useless?

** I am not seeking a product review, but right/wrong choice for my drill machine** Hello, I have a Terratek 500w impact drill (https://www.amazon.co.uk/gp/product/B00H3KYLQY/ref=...
user avatar
  • 103
1 vote
2 answers
119 views

Are There Any Dremel Cutting Wheels That Actually Cut Steel?

Recently,I was using my prized, vintage Dremel Moto Tool (model no. 2) in an attempt to sever a 1/8” diameter steel screw. I was using Dremel’s S-99 steel cutting wheel. Thinking that the cutting ...
user avatar
  • 11
2 votes
2 answers
67 views

Drilling holes in towel hanger hardware

I'm trying to hang a towel hanger, but with my own anchors. I'm struggling to drill a hole in the steel hardware that gets bolted to the wall: I'm using a hand drill, running at about 450rpm. I've ...
user avatar
  • 164
0 votes
1 answer
282 views

What’s preventing my drill from going though my wall?

I’m trying to drill holes for 3/16 screws in the walls of my room, but the drill is unable to penetrate through some parts of the wall. At first I thought I hit a nail, so I tried making another hole ...
user avatar
  • 79
0 votes
2 answers
211 views

Why do only some drill bits slip out my drill chuck?

I have an adored drill/driver that has always struggled with some cheap bits I had from another kit. Drilling into wood goes as planned, but then when pulling the bit back out of the wood, the bit ...
user avatar
  • 3,306
15 votes
11 answers
4k views

Is it safe to use a drill bit with a half broken tip?

I broke the tip of the masonry drill bit. The tip looks like this now. Half of it is missing, and it seems that the tip itself moved slightly towards the center (since at the bottom, it is parallel to ...
user avatar
13 votes
11 answers
5k views

How can I drill through small thin hardened steel wrenches?

I have a couple wrenches that came with my mini air powered die grinder. I want to put a hole into the top so that I can attach a wire or string so I don't lose them. I used a punch to put a dimple ...
user avatar