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100% its a manual drill, here is my reasoning, there is a pivot on the pistol grip rear, so hold that in and the crank shaft will come to the rear and you cant see a spring but there will be one built into the crank shaft body to pressure return the shaft to the front, on the front of the pistol grip there is a clamp so use that to hold the device firm to what it drills, on the front of the crank there is what looks like a spear point glass or tile drill bit with adjustable component marked .3 to 8, so the device has an adjustment for its process between those settings.

This has a cast body and machine made parts so not home made, who ever made it made a lot of them, so this was used by a lot of persons to drill whatever it drills, looking at the clamp and the shape of the drill it seems to me that whet it did drill was hard and brittle so the clamp is there to stop vibration that may break or crack the work face, which is why I think it may have been used to drill ceramic tiles or similar, i\ the design of the spear point bit makes me think this did not drill metal like steel or aluminum and there may be a drill part missing from the drill bit area. So its a device to drill a hole in a brittle object by winding a hand.crank. N
 

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100% its a manual drill, here is my reasoning, there is a pivot on the pistol grip rear, so hold that in and the crank shaft will come to the rear and you cant see a spring but there will be one built into the crank shaft body to pressure return the shaft to the front, on the front of the pistol grip there is a clamp so use that to hold the device firm to what it drills, on the front of the crank there is what looks like a spear point glass or tile drill bit with adjustable component marked .3 to 8, so the device has an adjustment for its process between those settings.

This has a cast body and machine made parts so not home made, who ever made it made a lot of them, so this was used by a lot of persons to drill whatever it drills, looking at the clamp and the shape of the drill it seems to me that whet it did drill was hard and brittle so the clamp is there to stop vibration that may break or crack the work face, which is why I think it may have been used to drill ceramic tiles or similar, i\ the design of the spear point bit makes me think this did not drill metal like steel or aluminum and there may be a drill part missing from the drill bit area. So its a device to drill a hole in a brittle object by winding a hand.crank. N
That was my best guess. Appears to have been used to drill ceramic or clay tile. I think a part is missing, namely, a radius cutter that attaches to the scaled arm so that various sized holes can be drilled. I can't figure out what the numbers represent, unless it's for the hole diameter in cm.
 

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That was my best guess. Appears to have been used to drill ceramic or clay tile. I think a part is missing, namely, a radius cutter that attaches to the scaled arm so that various sized holes can be drilled. I can't figure out what the numbers represent, unless it's for the hole diameter in cm.
Hi guys, I'm not sure but it looks like the part with numbers may be upside down, from the photos it looks like a cutter is pointing back at the item, I could be wrong but that's what it looks like
 

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Discussion Starter · #13 ·
View attachment 400824
Tile cutter hole cutter. It is mounted on a tile cutter as per image. The cutter itself is wrong way round. That thin part is a tungsten carbide tip that does the cutting. The numbers is the hole diameter in centimeters
Hi. That is exactly what I need. I think the guy who put my tile floor in left this after the job. Seeing the pic above is what made the ID perfect. Thanks all for the help.
 

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View attachment 400824
Tile cutter hole cutter. It is mounted on a tile cutter as per image. The cutter itself is wrong way round. That thin part is a tungsten carbide tip that does the cutting. The numbers is the hole diameter in centimeters

I am happy to see that I picked what it is exactly correct, I am in awe of me. N
 

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