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I needed to widen 4 7/16" holes through 1/8" steel. The bit accomplished this, though I don't know if it would have done many more. They last hole took a little time, but it did what I need it to do, so that's worth four stars to me. I also used a drill press as I can't imagine doing this with a hand drill (I think that would be difficult with most any bit).
drilled out a bike rack, worded well on that metal.
Used one for drilling solar mounting holes through an asphalt shingle roof. Bit was pretty will shot after 21 holes. Something about drilling through hard granular roofing.
I needed a bit for cutting two 5/8" holes in 3/8" steel for a farm implement and found this one on Amazon at good price. It performed better than I expected. The IRWIN bit is made of M-7 high speed steel for extended life. It arrived sharp and in its own package for storage. I set the recommended drill speed as close as possible for the 5/8" bit diameter and material (steel) according to the table on my drill press. A pdf version of a table can also be downloaded from IRWIN that includes the bit sharpening angle. The bit moved easily through the 3/8" steel with no chatter or binding using my old drill press with manual belt speed adjustment. For the novice, it may be instructive to read up on the basic rules of drilling metal by searching on-line the words drilling metal etc. Some advance reading can keep one from making mistakes in judgement since the rules for drilling metal can be counterintuitive; such as not using cutting oil for small bits at low rpm; or pressing harder (rather than lighter) to reduce tip heating by generating continuous spiral cuttings rather than chips. For safety, wearing eye protection and mounting the workpiece securely are always musts.
Exactly as described.
5/8" S&D HSS Fractional 1/2" Reduced Shank Drill Bit
Features
The bit is constructed of M-7 high-speed steel for high resistance to abrasion during tough drilling applications
Three-flatted shank design provides better chuck grip and reduces slippage. Ideal for use in keyless chucks
All Silver & Deming bits are 6" long and feature a 1/2" reduced shank that fits all 1/2" drills
Standard 118-degree point for use in wood, metal, and plastic
Specifications
Size: 5/8"
Twist Length: 3"
Overall Length: 6"
We are offering a 30-day money-back guarantee!
If you are not satisfied with your purchase within 30 days of receiving the product, you can ship it back to us for a refund or exchange.
Before returning the item, kindly send us a request using the Self-Serve Return option or contact our customer support team to get your return authorization. You may contact us by email at support@mprtools.com, phone at 1-800-905-0410, or chat through our website. We are available Monday to Friday from 8 am to 5 pm ET.
We want to guarantee your experience with us will be outstanding. Here are just a few of the reasons why mprtools.com is the go-to company to get your tools from:
We work very hard to ensure we offer the absolute best prices online. If you find it at a lower price somewhere else within 365 days of purchasing, please message us, and we’ll credit you back the difference right away.
It's our duty to provide superior quality tools you can trust to get the job done. If you're not fully satisfied with your order, you can request a return for a complete reimbursement.
I needed to widen 4 7/16" holes through 1/8" steel. The bit accomplished this, though I don't know if it would have done many more. They last hole took a little time, but it did what I need it to do, so that's worth four stars to me. I also used a drill press as I can't imagine doing this with a hand drill (I think that would be difficult with most any bit).
drilled out a bike rack, worded well on that metal.
Used one for drilling solar mounting holes through an asphalt shingle roof. Bit was pretty will shot after 21 holes. Something about drilling through hard granular roofing.
I needed a bit for cutting two 5/8" holes in 3/8" steel for a farm implement and found this one on Amazon at good price. It performed better than I expected. The IRWIN bit is made of M-7 high speed steel for extended life. It arrived sharp and in its own package for storage. I set the recommended drill speed as close as possible for the 5/8" bit diameter and material (steel) according to the table on my drill press. A pdf version of a table can also be downloaded from IRWIN that includes the bit sharpening angle. The bit moved easily through the 3/8" steel with no chatter or binding using my old drill press with manual belt speed adjustment. For the novice, it may be instructive to read up on the basic rules of drilling metal by searching on-line the words drilling metal etc. Some advance reading can keep one from making mistakes in judgement since the rules for drilling metal can be counterintuitive; such as not using cutting oil for small bits at low rpm; or pressing harder (rather than lighter) to reduce tip heating by generating continuous spiral cuttings rather than chips. For safety, wearing eye protection and mounting the workpiece securely are always musts.
Exactly as described.
5/8" S&D HSS Fractional 1/2" Reduced Shank Drill Bit
Features
The bit is constructed of M-7 high-speed steel for high resistance to abrasion during tough drilling applications
Three-flatted shank design provides better chuck grip and reduces slippage. Ideal for use in keyless chucks
All Silver & Deming bits are 6" long and feature a 1/2" reduced shank that fits all 1/2" drills
Standard 118-degree point for use in wood, metal, and plastic
Specifications
Size: 5/8"
Twist Length: 3"
Overall Length: 6"
We are offering a 30-day money-back guarantee!
If you are not satisfied with your purchase within 30 days of receiving the product, you can ship it back to us for a refund or exchange.
Before returning the item, kindly send us a request using the Self-Serve Return option or contact our customer support team to get your return authorization. You may contact us by email at support@mprtools.com, phone at 1-800-905-0410, or chat through our website. We are available Monday to Friday from 8 am to 5 pm ET.
We want to guarantee your experience with us will be outstanding. Here are just a few of the reasons why mprtools.com is the go-to company to get your tools from:
We work very hard to ensure we offer the absolute best prices online. If you find it at a lower price somewhere else within 365 days of purchasing, please message us, and we’ll credit you back the difference right away.
It's our duty to provide superior quality tools you can trust to get the job done. If you're not fully satisfied with your order, you can request a return for a complete reimbursement.
I needed to widen 4 7/16" holes through 1/8" steel. The bit accomplished this, though I don't know if it would have done many more. They last hole took a little time, but it did what I need it to do, so that's worth four stars to me. I also used a drill press as I can't imagine doing this with a hand drill (I think that would be difficult with most any bit).
drilled out a bike rack, worded well on that metal.
Used one for drilling solar mounting holes through an asphalt shingle roof. Bit was pretty will shot after 21 holes. Something about drilling through hard granular roofing.
I needed a bit for cutting two 5/8" holes in 3/8" steel for a farm implement and found this one on Amazon at good price. It performed better than I expected. The IRWIN bit is made of M-7 high speed steel for extended life. It arrived sharp and in its own package for storage. I set the recommended drill speed as close as possible for the 5/8" bit diameter and material (steel) according to the table on my drill press. A pdf version of a table can also be downloaded from IRWIN that includes the bit sharpening angle. The bit moved easily through the 3/8" steel with no chatter or binding using my old drill press with manual belt speed adjustment. For the novice, it may be instructive to read up on the basic rules of drilling metal by searching on-line the words drilling metal etc. Some advance reading can keep one from making mistakes in judgement since the rules for drilling metal can be counterintuitive; such as not using cutting oil for small bits at low rpm; or pressing harder (rather than lighter) to reduce tip heating by generating continuous spiral cuttings rather than chips. For safety, wearing eye protection and mounting the workpiece securely are always musts.
Exactly as described.
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support@mprtools.com
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Great price and excellent tools.
Works very well and last long