Portablekeywaycutter

Special grinding the width tolerance is a minimum of three inserts, $20 grind fee per insert, and about 10-14 days to ship. We need at least one thousandths tolerance.

We only sell TiN coated carbide inserts. We do not sell HSS inserts. Our carbide keyway cutters have two cutting edges per insert. So be sure to divide the cost by two to calculate the true value of the CNC broach system.  Our inserts have been called very robust and rigid and when you hold one in your hand you’ll feel the weight of it. Many clients re-grind each cutting edge numerous times before the insert loses tolerance but this is not a service we provide. I have had clients tell me they re-grind each cutting edge 4-9 times. Again we do not offer a re-grind service.

When broaching a keyway in a tough 4140 motor shaft Baldor Electric Motors uses CNC Broach Tools. When they asked us to redesign the shank of our slotting tool to fit the MD Tooling live broaching tool we jumped at the chance. MD Tooling is the American distributor for M.T. Marchetti live lathe broaching heads. Their live tooling is great for high volume clients that want to improve cycle time. After modifying the rear shank of our broach tool the Baldor engineer informed us that we had, “blown PH Horn Broach out of the water” regarding insert life. We now carry eight keyway cutter tools that fit the holder for MD Tool and MT Marchetti slotting machine tools.

Your body shouldn't get too hot (or too cold). If your temperature rises too far, the proteins that build your body and run virtually all of its chemical processes can stop working. The human body sheds extra heat in two ways, both of which stress the heart:

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Evaporation also strains the cardiovascular system. Sweat pulls more than heat from the body—it also pulls out sodium, potassium, and other minerals needed for muscle contractions, nerve transmissions, and water balance. To counter these losses, the body begins secreting hormones that help the body hold onto water and minimize mineral losses.

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Radiation requires rerouting blood flow so more of it goes to the skin. This makes the heart beat faster and pump harder. On a hot day, it may circulate two to four times as much blood each minute as it does on a cool day.

Most healthy people tolerate these changes without missing a beat. People with damaged or weakened hearts, or older people whose bodies don't respond as readily to stress as they once did, have a much harder time, and may succumb to heat stroke. For example:

This depth dimension is different than the “length” depth and usually is not called out directly on drawings but has to be calculated by subtracting the dimension of the centerline of the bore to the top of the keyway from the overall bore size. Many clients do not understand us when we ask them for the Height of Groove or “ceiling” of the keyway dimension. And when we ask them the depth they give us the length. So then we say, “the other depth” and confusion occurs. For clarity: A keyway or slot has three dimensions. 1) the width 2) the length (most people call this the depth, CNC Broach calls it the length to differentiate it)

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Eat light. Stick with smaller meals that don't overload your stomach. Cold soups, salads, and fruits can satisfy your hunger and give you extra fluid.

Hot, humid weather can be especially hard for people with heart failure, or those on the verge of it. The extra work for the heart, compounded by the loss of sodium and potassium and the internal flood of stress hormones, can push some people into trouble. The combination of increased blood flow to the skin and dehydration may drop blood pressure enough to cause dizziness or falls.

If you think you are having heat-related problems, or if you see signs of them in someone else, getting to an air-conditioned space and drinking cool water are the most important things to do. If these don't help or the symptoms persist, call your doctor or go to a hospital with an emergency department.

Evaporation. Every molecule of sweat that evaporates from your skin whisks away heat. On a dry day, the evaporation of a teaspoon of sweat could cool your entire bloodstream by 2 degrees F. But as the humidity creeps above 75% or so, there's so much water vapor in the air that evaporation becomes increasingly difficult.

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The concept of broaching needs to shift from, a crashing operation where large chunks of metal are gouged out to a “shaving” action at high speeds. This does not hurt your expensive CNC machine as the average depth of cut per pass is .001”. At .001” depth of cut your machine doesn’t even know it’s cutting. Every week we have a new client tell us that they were concerned about forces so they put an indicator on their spindle and the indicator barely registered. Average speeds are 300 inches per minute. Average cycle time per part 1.5-2 minutes depending on length of cut and depth of the keyway. If a longer length of cut is needed for your application CNC Broach has known many of our clients to braise a piece of bar stock to the butt of our keyway broach tools, turn it so both pieces are concentric and then clamp on the longer length. We’ve known many clients to extend their keyway broach tools out and get that extra inch or two to get the job done without the cost or time involved with a special broach tool.

Take it easy. Turn procrastination from a vice to a virtue by putting off exercise or other physical activity until things cool down. Evening and early morning are the best times to get out. If you do exercise, drink more than you usually do.

Heat-related trouble ranges from irritating problems such as prickly heat (also known as heat rash) to heat exhaustion and the potentially deadly heat stroke. It can be hard to tell where heat exhaustion ends and heat stroke begins. Both can be mistaken for a summer "flu," at least at first. Be on the lookout for:

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To Broach Internal Blind Keyway’s with our Keyway Broach Tools you must have a groove or cross hole relief or you will crash the broach tool

Some simple choices can help you weather the weather and keep heat from overstressing your heart and spoiling your summer.

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Drink to your health. The lower your coolant level, the greater your chances of overheating. Unfortunately, staying hydrated isn't always easy. Stomach or bowel problems, diuretics, a faulty thirst signal, or low fluid intake can all interfere. On dangerously hot and humid days, try downing a glass of water every hour. (If you have congestive heart failure, check with your doctor or nurse first.) Go easy on sugary soda and full-strength fruit juice since they slow the passage of water from the digestive system to the bloodstream. And don't rely on caffeinated beverages or alcohol for fluid because they can cause or amplify dehydration.

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Radiation. Like water flowing downhill, heat naturally moves from warm areas to cooler ones. As long as the air around you is cooler than your body, you radiate heat to the air. But this transfer stops when the air temperature approaches body temperature.

Our keyway broach tools are made from 17-4 Stainless and heat treated to 44Rc which avoids the brittleness of 60’s Rc and the flex potential of 20’s Rc. The long length of cut provided has been used and tested by thousands of machine shops and companies since 2006 when our patented broach tool design was sold through Razorform Tools. The same keyway broach tools and inserts that fit Razorform Tools are interchangeable with our keyway broach tools.

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We do not do one-off special designs but instead rely on a decade old, standardized, proven product. When we send you keyway broach tools we know the same exact design you get is the same design that works for everybody else. The variables as to how well our keyway broach tools work for you are in your hands and mostly center around your set-up and programming. For tips on how to set-up your tool correctly visit this page of our website: https://cncbroachtools.com/keyway-cutters-speed-feed/

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Heat waves are unpleasant for healthy folks. For people with cardiovascular trouble, hazy, hot, humid days can be downright dangerous.

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When using our keyway insert chart please always check the height of groove dimension. This is how high the insert sticks up above the tool to get the depth radially (not length).

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Another option is for us to special grind the width tolerances down of an insert that fits into a larger, longer broach tool holder. That tool could then be used to do a longer and smaller keyway provided that that bigger tool will fit the smaller bore size that is commonly associated with smaller keyways. All Keyway Broach Tools shown are typically in stock and can usually be shipped same day UPS Red if needed.

Please do not ask us to quote you insert life. How well our product performs is solely based on variables out of our control such as your set-up and programming. If you would like to see examples of insert life that other clients get there are many testimonials throughout our website that will give you an idea of what is possible with our product, here are a few client generated videos: Keyway Broach cutting 304 Stainless https://youtu.be/KF9XvW-Oh54 Broach Tool cutting 1215 Steel https://youtu.be/reErqhcUE7g Broaching Keyway in 8620 https://youtu.be/W3x5aRFctks

Cool is cool. Chilled air is the best way to beat the heat. Fans work, but only to a point — when the air is as warm as you are, sitting in front of a fan is about as helpful as sitting in front of a blow dryer. If you don't have an air conditioner, spending an hour or two in a movie theater, at a store, or with an air-conditioned neighbor can help. So can a cool shower or bath, or putting a cold, wet cloth or ice pack under your arm or at your groin.