American Woodworker
Contact Us | Help | Report a Bug
Sign in | Join
 

Tune Up an Old Chisel Greeneville TN

These steps are equally useful for a new tool, fresh from the box. Please notice that I put equal emphasis on the chisel’s bevel and back. Both must be in perfect condition, for every sharp edge has two sides. Let’s begin with the back.

Full Cycle Woodworks Inc.
(423) 272-9004
1600 Hwy 70 North
Rogersville, TN

Data Provided by:
Ace Hardware
(423) 639-6223
1023 W Main St
Greeneville, TN
 
Lowe's
(423) 639-0012
2375 East Andrew Johnson Highway
Greeneville, TN
Hours
M-SA 7 am - 9 pm
SU 9 am - 7 pm

Olde Towne Ace Hardware
(423) 913-1606
220 N 2nd Ave
Jonesborough, TN
 
Appalachian Stoneworks
(866) 389-4260
412 Kinchloe Mill Rd
Jonesborough, TN

Data Provided by:
Fastenal- Greeneville
423-638-3622
730 W. Andrew Johnson Hwy Greeneville, TN, 37743
Greeneville, TN
 
LOWE'S OF GREENEVILLE, TENN.
423 639-0012
2375 EAST ANDREW JOHNSON HIGHWAY GREENEVILLE, TN, 37745
Greeneville, TN
 
Kmart 3773 / Cross Merch
(423) 636-1118
1355 Tusculum Blvd
Greeneville, TN
Store Hours
Miscellaneous
Store Type
Miscellaneous
Hours
Monday To Friday Working Hours is :8-22 and for Sat:8-22
Sun:8-21
Store Features
Monday To Friday Working Hours is :8-22 and for Sat:8-22
Sun:8-21

Lowe's
(423) 788-7000
1498 E. Jackson Boulevard
Jonesborough, TN
Hours
M-SA 7 am - 9 pm
SU 8 am - 7 pm

The Home Depot
(865)428-0116
128 Allensville Road
Sevierville, TN
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 8:00am-8:00pm

Data Provided by:

Tune Up an Old Chisel

Tune Up an Old Chisel

Turn a Beater into a Razor-Sharp Tool

by Tom Caspar

One of my favorite tools is a legendary Stanley No. 50 chisel. Made in the 1920s, it had seen hard times. Restoring it was a labor of love, and well worth the effort. Its steel holds a long-lasting, super-sharp edge. No doubt you’ve got some beat-up chisels in your toolbox that could be revived, too.

I’ll take you through the complete process of restoring a chisel that’s in tough shape. These steps are equally useful for a new tool, fresh from the box. Please notice that I put equal emphasis on the chisel’s bevel and back. Both must be in perfect condition, for every sharp edge has two sides. Let’s begin with the back.

Evaluate the Back

Inspect the back by sanding with fine paper (Photo 1). Put 220-grit pressure-sensitive-adhesive (PSA) sandpaper on a flat surface, such as a granite surface plate, 1/4-in.-thick piece of glass, cast-iron tablesaw wing or jointer bed. Sand the back a few times using diagonal strokes. Sanding reveals low spots. With an old tool, you’ll probably find rust pits, large hollows or a dip at the leading end. 

Flatten the Back

My chisel’s back looked so bad that I began flattening with 60-grit paper (Photo 2). If the inspection sanding indicates few low spots, begin with a finer grit. The point is to avoid making unnecessarily deep scratches. Machinists call this process lapping. For the coarse work, I use premium-grade sanding belts stretched tightly on a shop-made jig. They can be reused many times, unlike PSA paper. Lapping a back in poor condition may require many strokes, which is hard on your hands, so I often wear rubber-coated gardener’s gloves and take frequent breaks. 

Photo 2: Flatten the back on sandpaper using heavy pressure and diagonal strokes. I prefer to work on a 6-in. x 48-in. sanding belt. It’s easy to reuse and lasts a long time. The belt is stretched taut on a shop-made jig (see “The Lapping Jig, below”).

The Lapping Jig

Opposed wedges tighten a sanding belt placed over this jig. Strike the wedges with a hammer to stretch the paper taut. This jig works for a belt of any size, though I prefer 6-in. x 48-in. belts for their huge surface area. Make the jig from three layers of 3/4-in. MDF glued together. To round the ends, make two 45-degree crosscuts first, and then sand in between them. 

Continue sanding until you reach the bottom of the low spots. How far up the back must you go? Two to three inches are minimum, but I usually lap the whole back. (A totally flat back enables me to use guide blocks when I pare mortises, tenons and dovetails.) If 1/4 in. or less of the back’s leading end is lo...

Click here to read the rest of the article from American Woodworker