Bosch Carbide-Tipped Double-Flute Template Trim Bit

The Bosch Carbide-Tipped Double-Flute Template Trim Bit, model 85601M, is a versatile and reliable tool for anyone engaged in laminate trimming or template and pattern work. As a woodworking enthusiast, I have had the opportunity to put this bit through its paces, and I must say it has left a lasting impression.

Design and Build Quality

The first thing that strikes you about this Bosch bit is its robust construction. The 1/2-inch shank diameter lends a sense of sturdiness, making it well-suited for heavy-duty tasks. The double-flute design is engineered for smoother cuts, and the micrograin carbide tips promise extended tool life. These features are not just marketing fluff; they translate into real-world performance that you can rely on.

Performance

I used this bit primarily for template routing on various types of wood, including oak and plywood. The bit performed exceptionally well, providing clean and precise cuts. The double-flute design indeed contributes to smoother cuts, reducing the chances of tear-out, especially in materials where the grain changes direction. This is a significant advantage over single-flute or flat cutter heads, which can be prone to tear-out.

One of the standout features is the control cut design, which minimizes kickback. This is particularly useful for those who may not have extensive experience with router bits. The bit feels stable and predictable, making it easier to handle even for intricate tasks.

Bearings and Longevity

The bit comes equipped with two ball bearings, which widen the bearing surface and reduce wear on templates. This is a thoughtful addition, but it's worth noting that the bearings are not sealed for long-term use. During my testing, I found that the bearings performed well initially but showed signs of wear after extended use. For instance, while trimming two countertops, the bearing seized halfway through the second one. This indicates that while the bit is excellent for short-term or occasional use, it may not be the best option for long-term, heavy-duty applications.

Versatility

This Bosch bit is incredibly versatile. I used it to pattern a curve on a thick oak bench leg, and it chewed through the excess wood effortlessly. The 1/2-inch shaft provides the heft needed for such demanding tasks. Additionally, I found it particularly useful for cutting through mortises in plywood. After drilling out most of the waste, this bit made quick work of the remainder, leaving no burn marks.

Ease of Use

One of the most significant advantages of this bit is its ease of use. The sharpness of the bit and the double-flute design make it easy to achieve clean cuts with minimal effort. I also appreciated the bit's length, which allowed me to reach deeper cuts without having to make multiple passes. This is a time-saver and reduces the likelihood of making errors.

Value for Money

Given its performance and build quality, the Bosch Carbide-Tipped Double-Flute Template Trim Bit offers excellent value for money. While it may not be the cheapest option on the market, its reliability and versatility make it a worthwhile investment. I found it to be comparable to more expensive bits I've used in the past, and in some cases, it even outperformed them.

Points of Caution

While my overall experience with this bit has been positive, there are a few points of caution. The nut that holds the bearing can come loose, as it did during one of my projects. I had to replace it with a nylock nut to ensure it stayed in place. This is a minor inconvenience but worth mentioning for those who plan to use the bit extensively.

Another point to consider is the bit's suitability for different types of routing. If you're primarily working with wood where the grain changes direction frequently, you might find a spiral bit more effective. Spiral bits can handle such conditions better and are less prone to tear-out. However, they come at a higher cost, and for many users, the Bosch bit will be more than adequate.

Conclusion

In summary, the Bosch Carbide-Tipped Double-Flute Template Trim Bit, model 85601M, is a robust and versatile tool that delivers excellent performance for a variety of routing tasks. Its double-flute design, control cut feature, and micrograin carbide tips make it a reliable choice for both amateur and professional woodworkers.

While it may have some limitations in terms of bearing longevity and suitability for specific types of wood, its overall performance and value for money make it a strong contender in its category. If you're looking for a reliable, versatile, and easy-to-use trim bit, this Bosch model is definitely worth considering.

I would recommend this tool for anyone engaged in template and pattern routing, laminate trimming, or general woodworking tasks. Its performance, ease of use, and value for money make it a worthwhile addition to any toolkit.