Metal Working Tooling and Equipment

	Niagara Cutter STR540 STABILIZER Solid Carbide End Mill, Aluminium Chromium Nitride (AlCrN), 5-Flute, 40 Degree Helix Angle, Center Cutting, Single End, .030 Radius, 1-1/4" Cutting Lg, 5/8"Cutting Dia List Price: $144.33 Sale Price: $129.90
	The Niagara STABILIZER has the ability to take deeper cuts at faster speed and feed rates. This calculates to dramatically higher metal removal rates and productivity. In addition, tool life is extended due to the reduction of chatter and damaging tool vibration...

Radius Angle

Yuasa Radius Angle Tool Cutter Grinder    US $2,950.00

FLUIDMOTION RADIUS ANGLE WHEEL DRESSER RFG 750A    US $2,000.00

Hermann Schmidt NEW N BOX RADIUS ANGLE Wheel Dresser    US $1,750.00

Hermann Schmidt KR RADIUS ANGLE Wheel Dresser USED    US $1,200.00

MINT YUASA RADIUS ANGLE DRESSER W CASE EXTRAS    US $995.00

YUASA RADIUS ANGLE GRINDING WHEEL DRESSER EXCELLENT    US $850.00

YUASA RADIUS ANGLE GRINDING WHEEL DRESSER    US $850.00

RADIUS ANGLE Wheel Dresser JS TOOL COMPANY XLNT    US $750.00

RADIUS ANGLE Wheel Dresser ACCRO DRESSER XLNT    US $750.00

SPI Swiss Precision Radius Dresser Angle Instrument    US $750.00

J S Tool Radii radius Angle dresser tool USA    US $719.10

GREAT USED ECONO DRESSER RADIUS ANGLE WHEEL DRESSER    US $699.00

LAST WORD DIAMOND GRINDING WHEEL RADIUS ANGLE DRESSER    US $599.00

Form All Precision Diamond Radius Angle Dresser Wheel    US $599.00

Clearview Hermann Schmidt radius angle dresser form    US $500.00

J S fluidmaster tool radii radius angle dresser case    US $500.00

Clearview Hermann Schmidt radius angle dresser $1715new    US $500.00

PRECISION GIN RADIUS ANGLE WHEEL DRESSER 10    US $499.99

RADIUS RADII ANGLE DRESSER J S TOOL CO KG BIDZ NOW    US $499.00

Radius and Angle Dresser    US $495.00

GIN RADIUS DRESSER VISI DRESS ANGLE    US $495.00

PROFESSIONAL 5225 6 MIN VERNIER RADIUS ANGLE DRESSER    US $478.22

YUASA Precision Radius and Angle Dresser 550 001 w case    US $449.99

Hermann Schmidt Kuhn Radius angle dresser tool    US $438.88

Econ O Line Angle Radius Wheel Dresser Model E 500    US $400.00

GREENLEE 90 RIGHT ANGLE CABLE ROLLER TRAY 36 RADIUS    US $395.00

WHEEL DRESSER ANGLE RADIUS GRIND FREE DIAMOND DRESSER    US $368.00

Dresser for ID OD Grinder 3 mount angle radius    US $337.50

JS fluidmotion radius tangent angle dresser    US $300.00

NEW Model TR 275 Radius Angle Dresser    US $290.00

RADIUS ANGLE DRESSERSPISWISS PRECISION MDL 70 100 3    US $275.00

Radius Angle Dresser    US $275.00

RADIUS AND ANGLE DRESSER W 1PC DIAMOND DRESSER    US $269.99

SHXWG65 OPTICAL RADIUS ANGLE DRESSER    US $258.00

Tosho Radius Angle Dresser Surface Grinder machine tool    US $250.00

Phase II 225 102 radius angle dresser surface grinder    US $249.00

Vision Type Angle Radius Grinding Wheel Dresser TDEC    US $239.99

NEW 12 RADIUS ANGLE SURFACE GRINDER WHEEL DRESSER    US $220.00

Yuasa 550 001 Radius Angle Dresser in wooden box NR    US $200.00

PRECISION RADIUS ANGLE DRESSER GRINDER DIAMOND DRESSER    US $199.90

Precision Radius and Angle Dresser GRINDER DRESSER    US $189.99

Radius Angle Dresser Clearview type for form grinding    US $101.50

ANGLE GAGE SET OR RADIUS GAGE SET YOUR CHOICE    US $18.99

Robb Jack Angle Radius Mill SWM2 00 10200 New    US $18.00

How to find arc length if given radius and central angle measure? ?

radius: 3 inches
measure of arc FG: 80 degrees

The measure of the central angle tells what portion of the whole circle the sector it is. 80/360 = 2/9 of the circle.
The circumference of a whole circle is 2 pi r, but you want 2/9 of that. SO, the arc lengh is:
(2/9)(2)(pi)(3) = approximately 4.2 inches

The second problem works the same way:
(120/360)(2)(pi)(12

that's it!

The Four Key Factors In Your Swing

When I mention the word basics in my golf lessons, players start thinking about things like grip, posture, ball position, alignment, and so on. That's only natural. Golf pros talk so much about these subjects in golf instruction sessions that players assume they're the focus when the discussion comes round to the basics of a golf shot.

But there are four other basics—plane, centering, radius, and face—that key good ball striking. Players must master the four factors to cut their golf handicaps down to size. These factors, which are sometimes neglected in golf lessons and golf tips, determine consistency. If you're off with these even slightly, you'll slice, hook, or mis-hit the shot, regardless of your grip, posture, ball position, or alignment.

Plane:

Plane is the angle your club takes at address. Your swing should have a circular look to it when viewed from a face on perspective. The swing won't be a pure circle, but it will have a recognizable circular shape. Looking from down the target line, the circle should be tilted the same angle as the clubshaft as it sits at address. This area encompasses the most direct and powerful route back to the golf ball.

The club must remain in this defined plane as it approaches the golf ball on the downswing. While your swing plane may change from waist high in your downswing to waist high in your finish, your club must go through the original plane at address to hit straight shots solidly. So while you may see some odd looking swings by Tour players, you'll also see that they always return the club to the same plane of address at the bottom of their swings.

Face:

Face is the second important factor. To gain control over the clubface at the moment of impact, your hands must be at the same position when you make contact with the ball as at address or may be a bit forward. Returning your hands to the same position guarantees that your clubface is pointing in the same direction as when you set up to hit the ball.

There are three ways you can hold the club at address—with your hands on the left side of the grip (weak), the middle of the grip (neutral), or the right hand side of the grip (strong) for right-handers. The best grip is the one you can produce naturally shot, after shot, after shot. If you look closely at the pros, you'll see players with different grips, yet they still hit consistently straight shots. Why? Because the way you grip the club matters less than the how your hands are at address. If you have a strong grip at address, you better not have a weak grip when making impact; otherwise, you'll end up with either an opened or a closed clubface at impact.

Radius

Radius is the distance from your left shoulder (for right handers) to the end of the clubshaft. In other words, it is the distance from the center of your golf swing to the outer-edge. Your lead arm must be in line with or trailing your arm at impact, known as "maintaining radius." Bobby Jones, the great amateur, called this "good timing."

Maintaining radius enables you to strike the ball solidly. Many recreational players that I give golf lessons to try to force the shaft of the club past the lead arm prior to impact. This effort causes the clubface to travel up not down, resulting in a fat or thin shot. A loss of radius causes a hook, slice, loss of distance, and wide assortment of other poor shots.

Centering:

Centering refers to the spine and head at address. While you may have some lateral movement of your head and spine in your swing, consistent hitters keep these areas, or their centers, steady. A steady center involves two things. From a down-the-line-look, the amount that you bend forward from your hips at address is constant throughout your swing. From a face-on perspective, your center (spine and head) remains as constant as possible as well. Your swing, as I've explained in my golf tips, revolves around your center.

While the basics like grip, posture, ball position, and alignment are important, they only prepare you to take your swing. They increase your chances of hitting a golf ball when the more important basics are in order, producing accurate, solid shots. To lower your golf handicap, you must the other "basics" of the swing—plane, fact, radius, and center.

About the Author

Jack Moorehouse is the author of the best-selling book "How To Break 80 And Shoot Like The Pros." He is NOT a golf pro, rather a working man that has helped thousands of golfers from all seven continents lower their handicap immediately.