CORNER ROUNDING 1 3/4' X7/8' 5/8' RADIUS) 1/2' SHANK

PRO-TECH

Regular price R 687.18

SKU: KP1211
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Pro-Tech. South African favourite for over 30 YearsCorner Round Router bit

Corner round or round-over router bit sample
Carbide Tipped

Flush trim profile

The corner-rounding bit rounds an edge to a given radius. The tool is shouldered to cut a fillet if required. The cut can be used to ease edges, as a simple profile, or as a part of a complex one. Other names for this router bit are round-over, rounding over and quarter-round. If a smaller pilot bearing is used, a second shoulder can be produced, in effect making the bit a beading bit.

Rounded edges give a project a softer, smoother look. The greater the radius of the round-over, the more pronounced this effect becomes.

How to measure the radiusRounding an edge makes it more durable because it won't show dents, splinter, or lose its finish as easily as a sharp corner. Like a blade that loses its sharp edge, a rounded corner is more 'friendly' to people or objects that come in contact with it.

Manufacturers classify round-over bits according to the radius they cut. So, a 3/8 inch round-over bit cuts a 3/8 inch radius, and so forth. To determine the radius of a round-over bit, measure either of the dimensions shown in the drawing.

This router bit has a 12,7 mm shank (shaft) that will fit most large routers. Please ensure that you select a router bit with a shank (shaft) size that will fit into your router collet.

PRO-TECH router bits are manufactured in Taiwan.

 

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Part No.Shank dia.Cutting widthCutting HeightRadius (r)
KP12111/2 _x000D_ inch1 3/4 inch 7/8 inch5/8 inch
12.70 mm44.50 mm22.23 mm15.88 mm
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Length of Shank: 38 mm
_x000D_ Replacement bearing part number: KP100 1-2

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_x000D_ Corner round router bit 

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_x000D_ Take CareFull Speed

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consider _x000D_ safety for your health and the people around you
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General safety suggestions:

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It is advisable to always have the following items nearby and in a good _x000D_ condition

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  • Eye protection – clean and scratch free
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  • Hearing protection – quality earmuffs
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  • Dust masks – discard old and dirty masks
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  • Gloves – for easy handling of material and hand protection
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_x000D_ Wear Gloves_x000D_ Eye Protection_x000D_ Hearing Protection_x000D_ Dust Mask
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_x000D_ Wear Gloves
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_x000D_ Eye Protection
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_x000D_ Hearing Protection
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_x000D_ Dust Mask
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To use router bits safely (and to get the best results from your router), the _x000D_ router bits need to be installed properly into the router's collet. Improper installation _x000D_ of your bits can cause excessive chatter and could increase the likelihood that _x000D_ the bits will break when in use. 

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Clean and sharp

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First of all, before beginning any routing operation, check your bits to _x000D_ make sure that they are clean, relatively free of pitch, and most of all, sharp. _x000D_ If the bit is dull, chipped, is excessively burned or has any other defect, _x000D_ it should be sharpened or replaced before use. 

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_x000D_ Correct _x000D_ collet and collet nut fit

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Most router collets have a recess (groove) that needs to click into a circlip _x000D_ that resides inside the collet nut. Failing to ensure that the collet 'clicked' _x000D_ into the collet nut will cause you to struggle to remove the router bit after tightening. _x000D_ This could cause the collet to break or be removed by a technical repair centre.

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_x000D_ Correct _x000D_ fit inside the collet

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When installing the bit into the collet, do not tighten the collet with the bit _x000D_ 'seated.' Instead, insert the bit until the shank (bit shaft) reaches _x000D_ the bottom of the collet, then ease it out about 2 mm before tightening the collet._x000D_

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When the bit is tightened, there should be no less than  2/3 _x000D_ 's of the length of the shank in the collet. If your bit has a shank that is too _x000D_ short, then the bit should be replaced. 

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Safety gear

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There are a few other safety measures to keep in mind whenever you use your router. _x000D_ First of all, remember to always wear appropriate safety gear as indicated above.

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Correct speed setting

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Second, be sure to set your router to the proper speed for your router bit. _x000D_ Setting your router to an incorrect speed will not only affect the router's performance, _x000D_ but also can cause the bit to break much more easily and even cause bodily harm. _x000D_ The speed at which a router bit turns can be important. The typical router runs _x000D_ at about 22,000 rpm, which is fine for most bits. But as the diameter of the bit _x000D_ increases, you’ll want to slow things down.

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Also, before beginning any routing operation, be certain that you give the router's _x000D_ motor time to come up to full speed for the chosen setting. Beginning to cut before _x000D_ the bit is at full speed can give less than desired results. 

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_x000D_ Safety gearObserve _x000D_ the following at all times

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  • Wear a protective face shield or Safety Glasses to prevent eye and face _x000D_ injury.
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  • Wear ear plugs or ear muffs to protect your hearing.
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  • Use a respirator or dust mask to give protection from dust particles. Wood _x000D_ dust may remain in the air for hours after using power tools.
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  • Always read and follow router operator's manual instructions.
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  • Make sure that router rpm's and the bit selected match.
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  • Dress properly. Wear short sleeves, no loose fitting clothes, proper footwear _x000D_ and no jewellery. Tie back long hair.
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  • _x000D_ UNPLUG!!!!Always _x000D_ be sure the router is unplugged before replacing bits and that the switch is _x000D_ off before connecting the router.
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  • Be sure the router bit has completing stopped spinning before sitting the _x000D_ router down.
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  • Be sure bits, clamps and attachments are secure before starting up.
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  • Keep children, pets and visitors at a safe distance.
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  • Be especially cautious when working small pieces.
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  • _x000D_ Keep _x000D_ hands and fingers away from revolving bits and cutters.
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  • Do not operate routers in moist or wet areas.
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  • Always grip tool tightly and be prepared at start-up to resist the motor _x000D_ torque.
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  • When using a router table, make sure on/off switch is easily accessible._x000D_
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  • Learn the sound of your router and shut it off at any unfamiliar sounds _x000D_ or irregularities.
    _x000D_ Never start the router with the bit in contact with the material.
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  • Always feed in the proper direction, against the direction of bit rotation.
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  • Maintain equipment. Replace worn parts, discard worn-out bits and check _x000D_ router periodically. Clean parts with appropriate solvents.
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  • _x000D_ Don't _x000D_ operate a tool if you are tired or under the influence of medication, drugs, _x000D_ alcohol or while smoking.
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  • Check wood for nails, screws or loose knots before routing.
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  • Keep your mind on your work, avoid distractions, work at a comfortable pace _x000D_ and stop before you get tired.
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Do a dry run

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  • Place the router on the final work surface and test you cut by moving the _x000D_ router over the whole are to cut with THE ROUTER SWITCHED OFF
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  • You do not want to waste an expensive piece of wood
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  • You do not want to start all over
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  • Never met anyone with spare fingers - SAFETY
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