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Choose the Right Grinding Wheel Clackamas OR

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
(503)723-3181
2002 Washington Street
Oregon City, OR
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

The Home Depot
(503)252-0188
11633 NE Glen Widing Dr
Portland, OR
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

Woodcrafters
(800) 777-3709
212 NE 6th Ave
Portland, OR

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The Home Depot
(360)254-6289
330 SE 192nd Ave
Vancouver, WA
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

Woodcraft - Portland, OR
(503) 684-1428
12020 SW Main Street
Tigard, OR

Data Provided by:
The Home Depot
(503)261-8543
10120 SE Washington St
Portland, OR
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

The Home Depot
(503)674-3944
25101 SE Stark Street
Troutdale, OR
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

The Home Depot
(503)639-3500
14800 SW Sequoia Parkway
Tigard, OR
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

Goby Walnut Products
(503) 477-6744
5315 NW St. Helens Rd.
Portland, OR

Data Provided by:
Gilmer Wood Company
(503) 274-1271
2211 NW Saint Helens Road
Portland, OR

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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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