Makita 7104L/2 240V Chain Mortiser

Product Information

The first square chisel lever mortisers were purely manual and relied on the operator pulling down on a large lever to push the chisel through the timber. An improvement was to place a rotating cylindrical auger inside a hollow chisel. This helps to clear chips up the centre of the chisel. As electric power became easily available, the auger developed as a drill bit and became the main means of removing waste timber from the mortise. These mortisers now used much shorter hand levers, as the manual work was only in cleaning up the mortise to be square-cornered. For large trusses: horizontal slot mortiser stands are also available enabling depths up to 15-11/16" deep ( SG 400) or 19-5/8" deep ( SG 500) as well as angles up to 45 degrees.

The chain in the Mafell cuts in the crosscutting direction, so immediately you set it down and start cutting, it literally hugs the lumber and stays put until you finish cutting the slot. And please note: there is no such thing as a 12 or 12.7 Amp version of this tool! Makita dealers listing this are working with out-of-date information because Japan divides the wattage by 100V and North America uses 120V. The only thing that has changed on this tool in the last 30 years is the new silver color! We love our Mafell mortiser. We use it to cut all our mortises. We do a lot of oak timbers and we use this machine every day. Very light and stable. If we ever need another one, it will be a Mafell again." The drill bit goes through the hollow chisel, helping to drill into the workpiece and clear out the waste material, while the square chisel cleans up the edges of the hole created.The mortising handle is long and easy to use, ensuring minimum force is needed to plunge the bit into the work piece. Traditionally, a mortise would be cut by hand, using a chisel and mallet. However, due to the precision of fit required for a mortise and tenon joint, this can be a difficult and time-consuming task. The Greenlee Company still manufactures mortisers, as do a large number of other power tool manufacturers. It is a common tool in the woodshop of professional woodworkers, but because of its specialized nature, many amateur woodworkers would not make enough use of it to justify the moderately high cost and space this tool takes up in the woodshop. Some smaller and less expensive models, suitable for cutting only narrow mortises are available. What makes this tool so efficient is the chain that features sharp teeth to create clean, precise cuts at speeds up to 1000 feet per minute. To reduce splintering, score one side of the mortise with a chisel before using the Mafell LS 103Ec, or typically three sides before using the Makita 7104L.

Depending on the model, it also accepts a square chisel bit, which allows it to be used for cutting traditional mortises with square sides, instead of just cutting slots with rounded edges. Chain mortisers The JET JBM-5 stands is one of the best benchtop square-chisel mortiser that will make your job easier as a carpenter or furniture maker.Chains should be tight enough to barely fit a pencil between the chain and bar, and should be loosened at the end of the day. the tool is not an Air Compressor/ Air Tool, a Battery/ Charger, an Accessory, or a Petrol or Production Tool It’s constructed with heavy cast iron for stability during operation and to ensure it stands the test of time. If yes, continue reading this article to find out about the best chainsaw mortiser currently popular on the market. You can also learn more information about chainsaw mortisers in case you are a beginner. This article will help break down all the features and specifications to look out for when buying a chainsaw mortiser. Reuleaux triangle on MathWorld - includes an animation of the action of a Harry Watt square drill bit

The benchtop or square chisel mortiser is one of the most common power tool for cutting accurate mortises today. What makes this device so handy is the long handle and smooth gear transmission that creates greater efficiency and speed when setting up and making the cuts you want. Talking about chain mortisers, Mafell invented the first one in 1926, and today their LS 103Ec is undoubtedly still one of the best ones you can get your hands on. Note About Cutting Mortises and TenonsThe Powermatic 719T is a stationary cabinet style workhorse designed to help any professional woodworker cut mortises efficiently in the workshop. If, however, you have only a few small mortises to cut at home for a small project, a drill press equipped with a mortising bit will be a more suitable option and can work. As with most JET products, the build quality of the JET JBM-5 is top-notch. It’s made with heavy duty cast iron and steel components, which makes it very stable when making cuts. 2. RIKON Power Tools Benchtop X/Y Mortiser