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Star-M Japanese 601 Precision Drill Bits - Singles Reviews

5 Rating 2 Reviews
Read Workshop Heaven Reviews

Designed specifically for soft materials like wood, leather and plastics that can otherwise be problematic to drill, these wonderfully innovative Japanese drill bits produce exceptionally clean, crisp holes.
Hooked spurs clear any remaining waste from the perimeter of the cut, these are followed by semi-circular wings that incise a little deeper to part the waste from the surrounding material. A curved cutting edge then planes the waste out and sends it up the flutes.
For plastics use a low speed setting, for fibrous materials use your highest speed setting, and in both cases introduce the bit to the material gradually.
Drill Diameter (mm)
Shank Diameter (mm)
Overall Length (mm)
Cutting Length (mm)
3
6.35
80
35
3.5
6.35
80
35
4
6.35
80
35
4.5
6.35
80
35
5
6.35
80
35
5.5
6.35
80
35
6
6.35
80
35
6.5
6.35
80
35
7
6.35
80
35
7.5
6.35
80
40
8
6.35
80
40
8.5
6.35
80
40
9
6.35
80
40
9.5
6.35
80
40
10
6.35
80
40
10.5
6.35
80
40
11
6.35
80
40
11.5
6.35
80
40
12
6.35
80
40
13
6.35
116
66
15
6.35
116
66
16
6.35
116
66
18
6.35
116
66
19
6.35
125
75
20
6.35
125
75
21
6.35
125
75
22
6.35
125
75
 
Video courtesy of Star-M

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These are legendary and worth the price. Years ago I was looking for the "best" drill bit and these were recommended on a US website not available over here, well now they are.Must be great to work at Workshop Heaven dealing with the best of tools.
Helpful Report
Posted 1 year ago
These drill bits are expensive but they provide the cleanest, smoothest drilling experience I have ever come across. They're for softer material, so I have only used them on softwood but the cut is fast clean, and with almost no splintering out the exit hole. They work equally well with power drills and hand drills. If precision and tidiness are your goal then these are the drill bits for you.
Helpful Report
Posted 2 years ago