Sign up or log in to customize your list. Here's how it works: Anybody can ask a question The best answers are voted up and rise to the top It's my dad's drill and it's a Bosch. I'm not sure about the model no. etc because the box is missing together with the manual. He's been using it to drill holes in wood to install doors and also walls to hang pictures. I'm not sure if it can drill through steel though provided that if I'm using a drill bit suitable for that purpose (I'm not sure if there's drill bit to drill steel also). The steel that I want to drill is not stainless steel. It's just a 2cm x 6cm rectangle hollow bar and the thickness of the steel is somewhat close to the thickness of a normal kitchen knife (the chef knife as people usually said. not those machete / butcher knife thickness). It's quite rusty too. So can it be done? Most drill bits sold are "high speed" drill bits intended for a variety of materials including metal (but not concrete, tile, glass or extended use in plaster or plasterboard).
If the bits are fairly sharp, you should be able to use them in the steel, assuming it is not a hardened alloy. To improve your chances, a bit of oil at the cutting point will help prevent overheating. Slower is usually better. The rust probably makes the steel weaker and easier to drill. Did you find this question interesting? Sign up for our newsletter and get our top new questions delivered to your inbox (). Drilling steel is easy, once it is marked and punched. I would use a 4 or 5mm high speed steel bit. It needs to be sharp, and sharpening it is a trick: you would need to be shown, as I can't easily describe the technique in words. Drill on faster speed pushing fairly hard, with some sort of oil (CT-90), by piloting you remove the very centre, which in effect you are not drilling, you are just forcing the bit to push the steel to the cutting edge. From there you can open the hole to the desired size. For any size from about 9mm I would use the slower setting, and personally I would only drill up to a 14mm with a pistol drill.
Keep a tight grip! For anything bigger use a pillar drill and keep the work clamps; the drilling speeds vary depending on size and material, you can look this up. If you do come across stainless then half all drilling speeds, and keep the cutting constant as stainless will work harden. Brass needs to treated the same, aluminium and coppers are softer and you can nearly double the steel speeds, use appropriate cutting compound for the type of metal. If you are using a drill bit suitable for steel, then yes, providing the drill itself has enough power, this will be fine. Even a low power drill can do this successfully, you will just need to take it slow in order to avoid getting the bit stuck. A higher power drill will manage without much of a problem. Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for?
Browse other questions tagged drill steel or ask your own question.Cost to install a door can be as low as $35 or as high as $990+ and actual price will be affected by a number of factors. 1 Prices in the chart are estimated based on standard doors installation and cannot be considered as charges for door replacement. Any additional work including removing an old door or reframing door opening will be quoted as separate charges. 2 Labor cost to install interior door estimated based on 7 interior doors installation minimum excluding any materials expenses. Smaller job orders will be calculated at higher rate per door to install. 3 Exterior door prices estimated based on installation of a 36” x 80” prehung front door or 72” x 80” patio door. Bigger sizes and doors with sidelights will be priced at higher rates. 4 Cost to install one interior door will be estimated as a minimum charge for same day service and normally vary from $170 to $250. 5 Additional factors impacting the cost of a door to get installed
On a new construction with exact rough opening additional fees for doors installation are not typical. During a remodeling or home improvement project preparation work might double total cost of labor. In older housed existing doors might be not a standard sizes meaning opening needs to be redone to fit a new door resulting in additional charges. Because of wide variety of doors available on the market as well as homeowner’s preferences and requirements are unpredictable it is impossible to provide an accurate estimate before analyzing all details. In some cases prices will be significantly higher. Custom made 80” x 96” iron door with 80” x 36” 3-sections window on top can be priced over $1,200 for labor alone to perform installation. On average a regular interior door will cost much cheaper to install comparing to an exterior one. Bigger entry or patio door is heavier and will consume more time to install leading to increasing the labor expenses. Exterior door requires much more professional approach during the installation.
All holes in between the door frame and wall frame have to be eliminated by using a proper insulation. It should be tight from underneath as well. Finishing the exterior door from outside might take longer than finishing any interior door. Because interior doors are much faster and simpler to install labor expenses will be lower. It is easier to work with a wood and the cost to install a wooden door might be a little lower than metal. From other prosperity cost of a door installation will be defined by complexity of work and time spent but materials will play secondary role in price determination. Door replacement cost will be estimated as a sum of charges for removing an old door, preparing door opening and new door installation. Usually for the door replacement carpenter will charge as much as 30% - 75% more in comparison to installation option only. Another but one of the most important factor which will determine the price for doors installation is an amount of doors need to be installed.