“I'm not sure a poor review is possible with this organization-phenomenal products at outstanding prices and a down to earth, intelligent staff (at least the ones I've talked to). My compliment to you is well deserved! Thank You!' Good product, great price, quick turnaround. It's one of those things that needs to be earned. “I'm not an easy go when it comes to compliments. Always wear proper eye and hearing protection when working with power tools.Using bits larger than 19mm (3/4”) in a hand drill can cause injury when the bit hangs on an imperfection in the wood. Small forstner bits can be used in a hand drill, but the results are usually less than satisfactory.Remove all the chips from the previous hole before boring a second or subsequent hole when mortising.Applying excessive force to the bit while drilling will also cause overheating. You can also extend the life of your bits by not exceeding the maximum speed recommended for the type of wood.Overheating caused by chip buildup or constant contact with the cutting surface will remove the temper from the bit’s cutting edges. Making repeated shallow cuts and allowing the bit to cool for two or three seconds between passes will increase the life of your forstner bit.Route-R-Joint™ Precision Dovetail SystemĬMT metric steel forstner bits are saw tooth models with 8mm round shanks on sizes up to 30mm and 10mm up to 55mm.Never grind or touch up the outside of the bit. The rim needs less frequent sharpening but can be touched up using a round file or diamond stone on the inside. Sharpen by running a small flat diamond plate along the horizontal scraper cutter keeping the angle constant. Make sure you compare the sizes before buying. We have selected the fifteen most popular and common metric forstner bit sizes so that you have the most useful set in the one purchase. Beware of other metric sets and included sizes! They still retain clean cutting characteristics when used drilling across the grain but just not as clean as a true forstner bit - although acceptable for virtually all wood boring. All the bits in the set are true forstner bits up to 22mm, with all bits 25mm and larger having a sawtooth design.Ī sawtooth design makes them able to cut more easily when drilling with the grain (such as through end-grain). We can proudly say that after 30 years, these forstners offer excellent value for money, at a cheaper cost than almost all of our competitors, without sacrificing the quality and genuine reliability that makes a forstner so worth having in the first place.

The common issue many people have with forstners is the cost factor - if you're only drilling flat-bottom holes on a semi-regular basis than many people try to avoid the initial outlay. The design permits large chip clearance easily and this combined with their ability to track truly makes them especially suited for drilling deep or extra large diameter holes. Extension bars are available for this purpose. They can be used to be bore in any direction and are extremely useful for boring holes on an angle or to true up and increase the size of an existing hole or timber imperfection. Hence they are not deflected easily by the natural differences in hardness found in timber such as knots or strong grain patterns. These forstner bits are superior because they come in a common metric size!įorstner bits are superior bits for drilling wood because they are guided by the rim and not a centre-point.

Metric forstner bits