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Choose the Right Grinding Wheel Hyattsville MD

Hard steel quickly dulls the abrasive particlesin a wheel. With a soft bond, the dull abrasive sloughs off quickly,leaving fresh, sharp abrasive to do the work. A hard bond, on the otherhand, holds tight to the abrasive particles, even after they're dull.

The Home Depot
(301)891-1106
3301 E West Highway
Hyattsville, MD
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

The Home Depot
(202)526-8760
901 Rhode Island Ave
Washington, DC
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

The Home Depot
(301)324-0180
150 Hampton Park Blvd
Capitol Heights, MD
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

The Home Depot
(301)871-0603
14000 Georgia Avenue
Aspen Hill, MD
Hours
Mon-Fri: 6:00am-10:00pm
Sat: 7:00am-9:00pm
Sun: 8:00am-8:00pm

Woodcraft - Rockville
(301) 984-9033
4950 Wyaconda Road
Rockville, MD

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The Home Depot
(301)345-6774
4700 Cherry Hill Rd
College Park, MD
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

The Home Depot
(301)805-8149
10301 M L King Jr. Hwy
Lanham, MD
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

The Home Depot
(301)680-3500
2300 Broadbirch Drive
Silver Spring, MD
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

The Home Depot
(301)634-3726
7111 Westlake Terrace
Bethesda, MD
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

The Home Depot
(301)497-7604
210 Ft Meade Road
Laurel, MD
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

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Choose the Right Grinding Wheel

Choose the Right Grinding Wheel




Q.
I've been told that the gray wheels that came withmy grinder will burn my woodworking tools and that white wheels arebetter. True?

A.
The stock wheels that come with most grinders are designed for the metalworking trade. They're way too hardfor grinding the hardened steel used for chisels and plane irons. It soundsstrange, but the harder the steel, the softer the bond in the wheelshould be. Here's why: Hard steel quickly dulls the abrasive particlesin a wheel. With a soft bond, the dull abrasive sloughs off quickly,leaving fresh, sharp abrasive to do the work. A hard bond, on the otherhand, holds tight to the abrasive particles, even after they're dull.The dull or “glazed” wheel rubs as much as it cuts, creating friction and heat that will toast your tools. The best all-around grindingwheel for woodworking tools is an 80-grit aluminum oxide wheel with arelatively soft bond designated by the letter H, J or K on the wheellabel (Photo 1). An H bond is the softest and will provide the coolestgrinding. Turners tend to prefer a J grade wheel; its harder bondresists grooving by gouges and parting tools. Smart buyers read labels.Look for a series of numbers and letters that usually comes after thewheel size. It's best to be color-blind when you are buying anew wheel (Photo 2). Instead, trust the label to give you the preciseinformation you need.

PHOTO 1:
Look for three things on a grinding wheel label. First, the letter A,which stands for aluminum oxide, the abrasive you'll want. Next is thegrit size; a 60- or 80-grit wheel is best. Finally, a letter rightafter the grit size represents the hardness of the bond. Letters from Hto K are considered soft bonds, with H being the softest.

 

PHOTO 2:
Don't let color be your guide. Aluminum oxide is made from bauxite, anaturally white mineral that can be given any color in manufacturing.The only way to really know what you're getting is to read the label.

Source:
Lee Valley and Veritas, (800) 871-8158, www.leevalley.com, Grinderwheels: 6-in. x 3/4-in. 80 grit, #08M18.02, $20, 6-in. x 1-in. 80 grit,#08M18.01, $23, 8-in. x 1-in. 80 grit, #08M19.01, $30

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