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| UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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Triangular shank masonry drill bit
I recently bought a bunch of masonry drill bits at a boot sale. Most
either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? John |
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#2
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Triangular shank masonry drill bit
John wrote:
I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? Hand brace, from memory, or standard three jaw chuck. John |
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#3
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Triangular shank masonry drill bit
"John" wrote in message ... I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? A normal chuck has three jaws and should grip them without a problem. I have a couple of bits with hex shanks that are for use in a three jaw chuck. John |
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#4
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Triangular shank masonry drill bit
"The Natural Philosopher" wrote in message ... John wrote: I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? Hand brace, from memory, or standard three jaw chuck. A carpenters hand brace took tapered square shank bits. There may be other types of hand brace. John |
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#5
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Triangular shank masonry drill bit
On 29/09/2010 11:53, The Natural Philosopher wrote:
John wrote: I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? Hand brace, from memory, or standard three jaw chuck. John Yes, hand brace. I have a set of screwdriver bits like that. Not sure I'd ever need a masonry bit in a brace though |
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#6
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Triangular shank masonry drill bit
On 29 Sep, 11:53, The Natural Philosopher
wrote: John wrote: I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? Hand brace, from memory, or standard three jaw chuck. Certainly not a hand brace. They tend to have square shanks. It looks too chunky for a normal drill chuck though I've not tried it in one. Certainly the marks on it look like it fits in a purpose designed triangular fitting. John |
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#7
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Triangular shank masonry drill bit
On Wed, 29 Sep 2010 04:11:54 -0700 (PDT), John
wrote: On 29 Sep, 11:53, The Natural Philosopher wrote: John wrote: I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? Hand brace, from memory, or standard three jaw chuck. Certainly not a hand brace. They tend to have square shanks. It looks too chunky for a normal drill chuck though I've not tried it in one. Certainly the marks on it look like it fits in a purpose designed triangular fitting. ISTR that Hilti had their own "standard" in the days before SDS. -- Frank Erskine |
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#8
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Triangular shank masonry drill bit
"dennis@home" wrote in message ... "John" wrote in message ... I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? A normal chuck has three jaws and should grip them without a problem. I have a couple of bits with hex shanks that are for use in a three jaw chuck. John try google http://www.alibaba.com/countrysearch...drill-bit.html |
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#9
Posted to uk.d-i-y
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Triangular shank masonry drill bit
"dennis@home" wrote in message ... "John" wrote in message ... I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? A normal chuck has three jaws and should grip them without a problem. I have a couple of bits with hex shanks that are for use in a three jaw chuck. John try google http://www.alibaba.com/countrysearch...drill-bit.html |
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#10
Posted to uk.d-i-y
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Triangular shank masonry drill bit
"John" wrote in message ... I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? John sorry for double post chair keyboard interface error |
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#11
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Triangular shank masonry drill bit
"TMC" wrote in message ... "dennis@home" wrote in message ... "John" wrote in message ... I recently bought a bunch of masonry drill bits at a boot sale. Most either fit in a chuck or are SDS. However, a few have triangular shanks which I've not come across before. The bits are not huge, I guess between 12 - 20mm. The triangular part is about 1/2" across the flats and about 1" long. I've tried various search terms with no luck. Does anyone know what type they are and what drill takes them? A normal chuck has three jaws and should grip them without a problem. I have a couple of bits with hex shanks that are for use in a three jaw chuck. John try google http://www.alibaba.com/countrysearch...drill-bit.html What is that link supposed to be telling me? |
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#12
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Triangular shank masonry drill bit
On 29/09/2010 13:47, dennis@home wrote:
http://www.alibaba.com/countrysearch...drill-bit.html What is that link supposed to be telling me? Dunno. This one looks quite good: http://en.wikipedia.org/wiki/Drill_bit_shank Andy |
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#13
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Triangular shank masonry drill bit
"Andy Champ" wrote in message . uk... On 29/09/2010 13:47, dennis@home wrote: http://www.alibaba.com/countrysearch...drill-bit.html What is that link supposed to be telling me? Dunno. This one looks quite good: It agrees with what I said so it must be good. |
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