#8,324 in Tools & Home Improvement
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Reddit mentions of HHIP 3900-0007 11 Piece R8 Collet Set (1/8-3/4 Inch By 16THS)
Sentiment score: 1
Reddit mentions: 1
We found 1 Reddit mentions of HHIP 3900-0007 11 Piece R8 Collet Set (1/8-3/4 Inch By 16THS). Here are the top ones.
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- Run out is 0.0007"
- Made of high grade tool steel
- Hardened and precision ground to close tolerance
- Internally threaded: 7/16" -20
- Includes a free T-Slot Cleaner
Features:
Specs:
| Height | 3.99999999592 Inches |
| Length | 7.99999999184 Inches |
| Number of items | 1 |
| Size | 1/8" - 3/4" by 16th |
| Weight | 5.9965735264 Pounds |
| Width | 3.99999999592 Inches |
This post is specifically about the HF 44991 mill.
I just got into milling and purchased the 44991 mill from Harbor freight. The 44991 is just a re-branded Sieg X2. They are not amazing mills, but they do work, there are also lots of after market mods that can really enhance the machine and make it more capable.
The First upgrade I would do is the Belt drive conversion. The nylon gears get destroyed pretty easily. Little Machine Shop is running a sale on their belt drive this week.
The second is the iGaging DRO upgrade available on amazon or from Anytime Tools.
Link to 6"
link to 12"
The 3rd upgrade is the Z axis Air spring conversion. It extends your Z-axis range a LOT and it is much smoother and easier to control. The included torsion spring is cumbersome.
The 4th is not so much a modification, but the included drill press chuck is not great. I recommend a good set of R8 collets.
try these
Make sure to disassemble and clean all of the grease out of the machine. Tighten up everything really nicely upon reassembly and you'll have a nicer machine than any of the Sieg X2 re-brands you can buy pre-built.