Helical cutterheads are recommended for processing smaller and thinner workpieces. Whereas spiral cutterheads work well with larger and thicker pieces.

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Usually, spiral cutterheads can create a very smooth and clean cut. However, when it comes to cutting harder and denser wood, helical cutterheads have a better cutting performance, resulting in a more accurate and even cut. In addition, helical cutterheads are capable of making deep holes.

As we mentioned earlier, spiral cutter heads are less expensive than helical cutter heads. If your budget is limited, a spiral cutterhead is right for you.

First, the alignment of the cutters to the cutterhead axis is different. Cutters on helical cutter heads are arranged at a slight angle to the axis, whereas cutters on spiral cutterheads are at a 90-degree angle to the workpiece. As a result, the cut edge of helical cutterheads is angled instead of perpendicular to the feed.

A helical cutterhead also comprises a cylindrical shaft with rows of small carbide turnover knives that are positioned in a helical pattern around the shaft. Thanks to multiple cutting blades, helical cutter heads can produce a nicer finish on the wood surface than straight cutterheads. In addition, helical cutterheads are quieter because of less vibration during the cutting process. Usually, the carbide insert knives have four cutting edges. When one edge is damaged or dull, just change to a new edge, reducing downtime.

CD 1 THE SCORE 01. Backdraft Main Titles (4:24) 02. The Real Thing (1:07) 03. One Case Won’t Do (1:16) 04. Burnt Out Beamer (0:54) 05. Mannequin Fire (8:31) 06. Save My Baby (2:10) 07. You Win (0:27) 08. In Another Life (2:47) 09. Show Me Your Firetruck-She’s Hot And Smokey-Tim Burns (5:55) 10. After The Fight (0:40) 11. What’s This Job All About? (2:15) 12. The Ex Is Back? (1:03) 13. I Just Can’t Anymore (2:01) 14. Swayzak’s OK (1:06) 15. Who Doesn’t Love Fire? (2:48) 16. Final Fire – Who’s Your Brother? (19:16) 17. Funeral (3:12) 18. Hard Lesson To Learn (3:32) Total Score Time: 63:34 THE EXTRAS 19. Flashlight (0:51) 20. Backdraft Main Titles (Alternate Mix) (4:25) Total Extras Time: 5:17 CD 1 Total Time: 68:51

A spiral cutterhead consists of a cylindrical shaft with several rows of small carbide insert knives arranged in a spiral pattern around the shaft. Unlike traditional straight cutterhead, these small inserts contact the wood board continuously, reducing tear-out and creating a consistent and smooth cut. Tungsten carbide is the second hardest material in the world, so these insert knives feature an extended service life and low maintenance. Spiral cutter heads are more suitable for low-density wood.

At the time of the film's a release, an album on the Milan label was released featuring 30 minutes of score and two vocals by Bruce Hornsby (not included on this new release). That album was mixed by the iconic George Martin, who interestingly chose to mix down or remove much of the electronic soundscape of the score. For this new 2-CD release, the first disc includes the complete film score as heard in the film, with all electronics intact. The second disc features the original Milan album and George Martin's special album mix. The story revolves around two estranged firefighter brothers (Kurt Russell and William Baldwin), who confront their troubled past while investigating a series of deadly fires in Chicago. As they delve deeper into the arson cases, they uncover a sinister conspiracy that tests their loyalty and puts their lives in jeopardy. This release is in memory of Donald Sutherland.

If you’re mostly working on difficult woods such as harder and denser woods, helical cutter heads are more suitable for you because they are capable of creating much smoother finishes on these woods.

If your budget is limited, a spiral cutterhead is the right choice due to its lower price compared to a helical cutterhead. As we mentioned, helical cutterheads feature a more complex design and more cutters, making them more expensive and having better cutting performance.

It’s of pivotal importance to install the appropriate cutterheads for your jointer or thickness planer when engaged in a woodworking project. There are three main types of cutterheads: straight, spiral, and helical. Obviously, it’s easy to tell straight from the other two cutterheads. As for spiral and helical, because of their similar appearance and function, it might be difficult to figure out their differences. Understanding the differences can help you select the right cutterheads for your project. So, today, we’ll compare spiral and helical cutterheads to give you inspiration for which one is right for your job.

The story revolves around two estranged firefighter brothers (Kurt Russell and William Baldwin), who confront their troubled past while investigating a series of deadly fires in Chicago. As they delve deeper into the arson cases, they uncover a sinister conspiracy that tests their loyalty and puts their lives in jeopardy. This release is in memory of Donald Sutherland.

CD 2 ORIGINAL 1991 SOUNDTRACK ALBUM 01. Fighting 17th (4:26) 02. Brothers (3:32) 03. The Arsonist’s Waltz (1:58) 04. 335 (3:02) 05. Burn It All (5:19) 06. “You Go, We Go” (5:11) 07. Fahrenheit 451 (2:59) 08. “Show Me Your Firetruck” (3:31) CD 2 Total Time: 30:01)

Spiral cutterheads and helical cutterheads are both important woodworking machines, but there are several pivotal differences we should know.

CD 1 THE SCORE 01. Backdraft Main Titles (4:24) 02. The Real Thing (1:07) 03. One Case Won’t Do (1:16) 04. Burnt Out Beamer (0:54) 05. Mannequin Fire (8:31) 06. Save My Baby (2:10) 07. You Win (0:27) 08. In Another Life (2:47) 09. Show Me Your Firetruck-She’s Hot And Smokey-Tim Burns (5:55) 10. After The Fight (0:40) 11. What’s This Job All About? (2:15) 12. The Ex Is Back? (1:03) 13. I Just Can’t Anymore (2:01) 14. Swayzak’s OK (1:06) 15. Who Doesn’t Love Fire? (2:48) 16. Final Fire – Who’s Your Brother? (19:16) 17. Funeral (3:12) 18. Hard Lesson To Learn (3:32) Total Score Time: 63:34 THE EXTRAS 19. Flashlight (0:51) 20. Backdraft Main Titles (Alternate Mix) (4:25) Total Extras Time: 5:17 CD 1 Total Time: 68:51CD 2 ORIGINAL 1991 SOUNDTRACK ALBUM 01. Fighting 17th (4:26) 02. Brothers (3:32) 03. The Arsonist’s Waltz (1:58) 04. 335 (3:02) 05. Burn It All (5:19) 06. “You Go, We Go” (5:11) 07. Fahrenheit 451 (2:59) 08. “Show Me Your Firetruck” (3:31) CD 2 Total Time: 30:01)

Deciding which type of cutterhead is appropriate for your woodworking project can be difficult. Here we’ve listed a few factors you should consider before the purchase.

The special design of helical cutterheads creates a shearing action during the cut. Carbide insert knives or turnover knives mounted on the cutterheads play a vital role during operation. As the name suggests, carbide insert knives are made from tungsten carbide, featuring outstanding hardness, wear resistance, and service life. Most of the cutters have four cutting edges. When one cutting edge is dull or damaged, just rotate the cutter to a new edge, reducing much downtime.