The standard portable machine for plumbing crews: complete with stand, cutter, reamer and oiler. Worth it for daily use, expensive for occasional jobs.
Amazon $5,750.41The RIDGID 300 Compact 15682 is the better pipe threading machine overall, rated 3.4 to 3.1. The RIDGID 300 Compact 15682 leads on weight. The BlueRock PTM-100 wins on capacity and value. The BlueRock PTM-100 costs $2,391.41 less ($3,359 vs $5,750.41).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
The only 4 in machine here that runs on a 110 V outlet. Choose it for a shop that threads large black pipe and sprinkler mains.
Amazon $3,359Which should you buy?
- Choose the RIDGID 300 Compact 15682 for weight (212 lb vs 392 lb).
- Choose the BlueRock PTM-100 for capacity (threads pipe up to 4 in vs threads pipe up to 2 in) and value ($839.75 per inch of pipe ($3,359, up to 4 in) vs $2,875.20 per inch of pipe ($5,750.41, up to 2 in)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every machines pipe threading machine; a clear win is highlighted. How we rank explains each one.
| Factor weight | RIDGID 300 Compact 15682 | BlueRock PTM-100 |
|---|---|---|
| Overall rating | 3.4/5 | 3.1/5 |
| Value 30% | 1 $2,875.20 per inch of pipe ($5,750.41, up to 2 in) | 37 $839.75 per inch of pipe ($3,359, up to 4 in) |
| Capacity 20% | 33 threads pipe up to 2 in | 100 threads pipe up to 4 in |
| Dies 15% | 100 dies in the box cover the full range, up to 2 in | 100 dies in the box cover the full range, up to 4 in |
| Weight 10% | 63 212 lb | 3 392 lb |
| Warranty 25% | 100 lifetime warranty | 0 warranty not published, scored as none |
Specifications
| RIDGID 300 Compact 15682 | BlueRock PTM-100 | |
|---|---|---|
| Threading | ||
| Pipe range | 1/8 to 2 in | 1/2 to 4 in |
| Dies in the box | Up to 2 in | Up to 4 in |
| Speed | 38 rpm | 36 rpm |
| Power | 373 W | 1,500 W |
| In the box | ||
| Cutter | Yes | Yes |
| Reamer | Yes | Yes |
| Oil system | Yes | Yes |
| Stand or support arm | Yes | Yes |
| Build | ||
| Weight | 212 lb | 392 lb |
| Warranty | Lifetime | - |
