The best remedy is to rout big cuts in several passes of increasing depth. Trying to remove too much stock in one pass is a recipe for torn grain and sloppy profile cuts. Tip #6: Take smaller bites on big profiles Either of these styles will produce a shearing cut, similar to a hand plane, to help you tame that difficult end grain. A better option is to use spiral bits or straight bits with cutters set at an angle to the bit’s axis (center and right in Photo 7). That chopping action is fine for softer long-grain fibers, but it can tear out or crush bits of hard end grain and leave a ragged cut. Ordinary straight bits (left in Photo 7) have cutters aligned with the axis of the bit, and they chop wood like a chisel. Tip #5: Consider investing in shear-cutting bits Then, rout across your workpiece and slightly into the scrap – it will support the fragile edge grain resulting in a crisp, clean exit cut (see Photo 6). Before you plow the dado, clamp a piece of scrap to the outboard edge first. Routing dadoes can result in a nasty blowout where the bit exits the wood, especially if you are hogging out a lot of material. Then, stop the tool and start the cut where you normally would, routing across the end grain to meet your climb cut (see Photo 5). Ease the router gently into the corner and pull it slowly back toward you a half inch or so. One way to avoid the problem is to start your routing pass at the exit corner and make a short climb cut to remove the corner material first (see Photo 4). When the bit breaks through those weak fibers, it’s a prime opportunity for tearout. If you are routing across just the end grain of a board, be careful of the exit corner. Tip #3: Sometimes a climb cut works wonders Climb cuts are unsafe for ordinary passes where you are removing a lot of wood. If it jerks forward and pulls through the cut, it’s a telltale sign that you’re heading the wrong way and making a climb cut. You’ll know you are feeding correctly if the router gently resists your efforts. Switch directions when you’re following an outside edge, and move the router counterclockwise (see Photo 3). When routing around the inside of a workpiece, such as a picture frame, feed the router clockwise (see Photo 2). This tip has more to do with safety than avoiding tearout, but it will improve your router’s cutting performance, too. A steady and smooth feed rate is the goal.įor most applications, the correct way to feed a router is against the bit’s rotation. Remember to slow your feed rate when approaching the corners of a workpiece or if you hear the router start to tear the wood instead of cut it. You’ll cut cleaner edges with fewer burn marks. When you are routing splinter-prone woods like cedar or oak with a large bit, turn your router’s speed dial down a few notches (see below). The larger your bit diameter, the faster it spins at the cutting edges. Most routers nowadays have variable speed control, and it’s there for a reason. Don’t let tearout spoil a perfectly good piece of wood… or your peace of mind. Generally, tearout happens when routing across the grain, turning corners or removing too much material in one pass. But, tearout is a router bugaboo you’ll want to avoid at all costs. No tool is better at decorating an edge than a router, and it’s ideal for cutting dadoes, rabbets and other joinery. For international returns, please click here.Put an end to tearout, splintery corners, blown-out edges and ragged profiles with a few simple routing tips. Items shipped directly from the manufacturer cannot be returned in store. You may also return purchases to a Rockler store near you for store credit. Your order will come with a return form with convenient instructions, or you may send your returns directly to Returns Department, Rockler Woodworking and Hardware, 4365 Willow Drive, Medina, MN 55340. For these items, please call the store where you purchased them or our customer service department at 1-80 so we can assist you. Manufacturer guarantees/warranties for power tools, CNC and laser products will supersede the Rockler Guarantee if these items are damaged or defective. If for any reason you are not satisfied with the merchandise you ordered, just return it within 90 days to receive a refund in the manner of original payment for merchandise only. We are proud of the quality of our products, and we stand behind them 100%. We proudly stand behind all of our products
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