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Choose the Right Grinding Wheel Great Falls MT

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
(406)727-1542
1500 Market Place Dr
Great Falls, MT
Hours
Mon-Sat: 6:00am-9:00pm
Sun: 8:00am-8:00pm

Kmart 3094 / Cross Merch
(406) 453-5424
1000 3Rd St Nw
Great Falls, MT
Store Hours
Miscellaneous
Store Type
Miscellaneous
Hours
Monday To Friday Working Hours is :0-0 and for Sat:0-0
Sun:0-0
Store Features
Monday To Friday Working Hours is :0-0 and for Sat:0-0
Sun:0-0

Big R Stores
(406) 761-6623
4400 10th Ave South
Great Falls, MT
 
Holiday Village Mall
(406) 771-4000
1200 10Th Ave S
Great Falls, MT
Store Hours
Sears Stores
Store Type
Sears Stores
Hours
Mon:10-21
Tue:10-21
Wed:10-21
Thu:10-21
Fri:10-21
Sat:10-19
Sun:11-18
Store Features
Mon:10-21
Tue:10-21
Wed:10-21
Thu:10-21
Fri:10-21
Sat:10-19
Sun:11-18

Great Falls Lumber
(406) 453-5413
310 6th Street South
Great Falls, MT
 
Great Falls Ace Hardware
(406) 216-5050
215 NW Bypass, The Fairgrounds
Great Falls, MT
 
Johnson-Madison Lbr Co
(406) 771-0222
815 10th St
Great Falls, MT
 
Ace Hardware Great Falls
(406) 727-5550
3527 10th Ave S
Great Falls, MT
 
Fastenal- Great Falls
406-771-1972
4212 North Star Blvd Great Falls, MT, 59405
Great Falls, MT
 
The Home Depot
(406)442-7311
1801 E Custer Avenue
Helena, MT
Hours
Mon-Sat: 6:00am-9:00pm
Sun: 8:00am-8:00pm

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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