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| Non-Gun DIY Projects and Customizations This section is for your DIY spearfishing projects and customization other then spearguns. |
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10-16-2012, 03:42 PM
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#1 |
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Registered User
Join Date: Aug 2011
Location: tarpon springs FL
Posts: 469
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what are these drillbits called/for specificaly
I have a couple of these bits the one on the right is a normal twist bit but the one on the left is a bit different, it has really wide spirals i think to complete turns down the entire lenght of the bit, just wondering if there are for a specific material wood, drywall?idk what are they called
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10-17-2012, 09:00 PM
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#2 |
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Registered User
Join Date: Jul 2011
Location: Silver Springs
Posts: 48
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Re: what are these drillbits called/for specificaly
There for stringy materials like aluminum and some plastics
Fast helix helps pull the swarth up |
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10-17-2012, 09:59 PM
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#3 |
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Registered User
Join Date: Apr 2007
Location: santa cruz
Age: 49
Posts: 5,473
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Re: what are these drillbits called/for specificaly
looks like a plastic drill bit . it wont pull in and crack the plastic
phil |
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10-17-2012, 10:29 PM
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#4 |
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Registered User
Join Date: Sep 2009
Location: San Diego
Posts: 174
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Re: what are these drillbits called/for specificaly
No way that's a plastic bit, plastic bits have a much steeper tip(cutting) angle to to prevent pulling up brittle materials such as plastic. See true plastic bit pic...
My guess would be for very soft materials, but that just a guess. 
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11-02-2012, 12:14 AM
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#5 | |
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209-202-DIVE
Join Date: Apr 2007
Location: Hilmar, Ca.
Age: 61
Posts: 2,144
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Re: what are these drillbits called/for specificaly
Quote:
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11-02-2012, 09:50 AM
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#6 |
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Snorkel Master
Join Date: Dec 2011
Location: Lower Keys
Posts: 5,588
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Re: what are these drillbits called/for specificaly
I think they are Used for drilling holes into peoples heads...
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11-02-2012, 04:11 PM
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#7 | |
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DJ
Join Date: Jun 2012
Location: Key Largo, FL
Posts: 575
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Re: what are these drillbits called/for specificaly
Quote:
__________________
I think I'm afraid to be happy because whenever I get too happy something bad always happens. - Charlie Brown |
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11-05-2012, 04:48 PM
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#8 |
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Guest
Posts: n/a
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Re: what are these drillbits called/for specificaly
Thats a drywall bit it cuts sideways you use it in a rotary tool.
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10-20-2021, 03:54 PM
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#9 |
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Registered User
Join Date: Feb 2015
Location: Georgian Bay, Ontario
Age: 72
Posts: 6
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Re: what are these drillbits called/for specificaly
If it's made of carbide and is 1/4", it is likely and upcut spiral router bit....?
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10-22-2021, 03:48 AM
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#10 |
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Registered User
Join Date: Oct 2007
Location: Pensacola Fl
Posts: 512
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Re: what are these drillbits called/for specificaly
If the bit is carbide it's for concrete, I have several. You drill a hole in morter and imsert a plastic piece in hole and use a screw in plastic to mount things. The screw expands the plastic. Pictured is 1/4 inch, different sizes are available.
 Sent from my SM-N986U using Tapatalk |
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