Reduced Shank Drill Bit Set Holder - warning wood content
Posted: Sat Jul 06, 2019 12:55 pm
I own two quality reduced shank drill bits, 15mm and 16mm. The 15 has done some serious work and been sharpened by a filthy hacker (me). The 16 is near new, but has one small chip.
I've always wanted a full set of quality NZ made metric drill bits. Going to come pretty close soon in the 0-13mm range (by 0.1mm steps!) but big stuff is not there yet.
Looking at pricing and availability it seems the big stuff is in 0.5 to 1mm steps from 13.5 up to at least 28. That means a max of 30 bits.
Sizes I found are present, 0.5 step gaps are signified by question marks:
13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 ? 19 ? 20 ? ? ? 22 ? ? ? 24 ? 25 ? 26 ? ? ? 28 = 17 + 13 = 30
I guess I'll make a wooden block 10 bits wide and 2 rows deep, for now. Then I can add another row if required later.
I only plan to own 6 in the short term anyway. So I can start with a single row of 10.
It's possible they go up to 32 or more in 1/2" shank bits, which would mean at most another 8 max and those would need wider spacing, too.
If I assume max drill bit size is 30mm then centre to centre is 30mm and centre to ends is 15mm + say 5mm for clearance to the world.
Or I could keep the smaller sizes closer together and bigger spaced out more.
Thus total width will be 30 * 10 + 10 = 310mm and each row should be say 40+mm wide, maybe 50mm wide to leave room for the size below each once the set is fleshed out.
310 is quite wide. Less would be better. A square block of about 200x200 or 250x250 or so would be good.
Here's the answer: http://boonkoonhardware.com/catalogues/EVACUT.pdf
(32 - 13) * 2 = 19 * 2 = 38 bits max - I feel a spreadsheet coming on...
So if I have 4 rows, each a step above the last, smallest at front, biggest at back, back rows empty until purchased, if ever, and a square flat area in front of the smaller row or to the side of all rows to place the M99 small stuff set on, then I have a full set of metric bits in one neat format.
Width needs to be 250-260 or so to accommodate the sizes required in the sets shown. Not sure how it'd look with 5 rows. But calling it 260 gives 65mm wide strips and an overall size of 260x520
I've always wanted a full set of quality NZ made metric drill bits. Going to come pretty close soon in the 0-13mm range (by 0.1mm steps!) but big stuff is not there yet.
Looking at pricing and availability it seems the big stuff is in 0.5 to 1mm steps from 13.5 up to at least 28. That means a max of 30 bits.
Sizes I found are present, 0.5 step gaps are signified by question marks:
13.5 14 14.5 15 15.5 16 16.5 17 17.5 18 ? 19 ? 20 ? ? ? 22 ? ? ? 24 ? 25 ? 26 ? ? ? 28 = 17 + 13 = 30
I guess I'll make a wooden block 10 bits wide and 2 rows deep, for now. Then I can add another row if required later.
I only plan to own 6 in the short term anyway. So I can start with a single row of 10.
It's possible they go up to 32 or more in 1/2" shank bits, which would mean at most another 8 max and those would need wider spacing, too.
If I assume max drill bit size is 30mm then centre to centre is 30mm and centre to ends is 15mm + say 5mm for clearance to the world.
Or I could keep the smaller sizes closer together and bigger spaced out more.
Thus total width will be 30 * 10 + 10 = 310mm and each row should be say 40+mm wide, maybe 50mm wide to leave room for the size below each once the set is fleshed out.
310 is quite wide. Less would be better. A square block of about 200x200 or 250x250 or so would be good.
Here's the answer: http://boonkoonhardware.com/catalogues/EVACUT.pdf
(32 - 13) * 2 = 19 * 2 = 38 bits max - I feel a spreadsheet coming on...
So if I have 4 rows, each a step above the last, smallest at front, biggest at back, back rows empty until purchased, if ever, and a square flat area in front of the smaller row or to the side of all rows to place the M99 small stuff set on, then I have a full set of metric bits in one neat format.
Width needs to be 250-260 or so to accommodate the sizes required in the sets shown. Not sure how it'd look with 5 rows. But calling it 260 gives 65mm wide strips and an overall size of 260x520
