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

Mortising on the Drill Press Marion IA

Mortising attachments are available for almost every drill press.Although they vary in appearance, they all have three basic components:a fence, a chisel holder and a hold-down. Upgrading these parts tostabilize the workpiece and operating the drill press at the optimalspeed are the keys to success.

The Home Depot
(319)294-0480
4501 1st Avenue SE
Cedar Rapids, IA
Hours
Mon-Sat: 6:00am-9:00pm
Sun: 8:00am-8:00pm

Marion Ace Hardware
(319) 373-7704
3200 7th Ave
Marion, IA
 
Acme Tools- Cedar Rapids
319-363-2211
1943 Blairs Ferry Rd NE Cedar Rapids, IA, 52402
Cedar Rapids, IA
 
Blairs Ferry True Value
(319) 832-1343
1100 Ne Blairs Ferry Road
Cedar Rapids, IA
 
Lowe's of Cedar Rapids
319-294-3780
5300 Blairs Forest Blvd NE Cedar Rapids, IA, 52402
Cedar Rapids, IA
 
Fastenal- Marion
319-377-5928
1100 44th Street Marion, IA, 52302
Marion, IA
 
Campbell Supply Co/Cedar Rapid
319 395 0991
2127 North Towne Lane NE Cedar Rapids, IA, 52410
Cedar Rapids, IA
 
Vernon Village True Value
(319) 362-8637
3501 Mount Vernon Rd Se
Cedar Rapids, IA
 
Kmart 4289 / Cross Merch
(319) 377-6303
180 Collins Rd Ne
Cedar Rapids, IA
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

O'Donnell Ace Hardware
(319) 395-7770
3825 Center Point Rd NE, Between Collins and Glass on Center Pointe Road
Cedar Rapids, IA
 

Mortising on the Drill Press

Mortising on the Drill Press



Even though they're sexy, benchtop mortising machines aren't the onlypower-tool option when it comes to cutting square-shouldered mortises.A drill-press mortising attachment can be just as effective and itcosts a lot less: $30 to $80 instead of $200 or more. I'll show you howto tune any out-of-the-box mortising attachment so it's easy to installand a joy to use.

Mortising attachments are available for almost every drill press.Although they vary in appearance, they all have three basic components:a fence, a chisel holder and a hold-down. Upgrading these parts tostabilize the workpiece and operating the drill press at the optimalspeed are the keys to success.

I get first-class results with my tuned-up mortising attachment. Thatmeans I don't have to store a large, heavy mortiser that I would onlyuse occasionally. On the drill press, I can slow the speed way down,too, so I don't overheat my bits. Drill-press mortising is slower, butit's much more pleasant, a lot quieter and much less nerve-wrackingthan using a mortiser.

Square mortises require special bits, which can be bought individuallyor in sets. Bits range in price from $10 to more than $50 apiece.Inexpensive bits usually won't stay sharp as long (see "Start Sharp,Stay Sharp," page 5), but dropping one on the concrete floor won't giveyou a heart attack, either.


Two-piece mortising chisels cut square holes. The auger bit fits inside the chisel and protrudes slightly.


During operation, the augerdrills a round hole and the four-sided chisel squares the corners. Cutside by side, square holes create mortises (see photo below).
1. Slow down.
Mortising chiselswork best at slow speeds, between 1,000 rpm and 1,500 rpm, depending onthe mortise size and the wood density. Within this range, use trial anderror to find the speed that works best.
2. Mount
the mortising fence ona separate base, rather than fastening it directly to the drill-presstable. Then clamp the base to the drill-press table. This setup makesthe fence easy to adjust, so positioning the workpiece is a breeze. 3. Install
the chisel and bit.The chisel holder, which clamps on to the quill, centers the chiseldirectly beneath the chuck. Lock the chisel with its collar tightlyagainst the holder. Then slide the bit into the chuck.
4. Leave
a gap. Position theauger bit with its cutting head about 1/16 in. away from the domedinside surface of the hollow chisel. Don't jam these two partstogether. This gap is essential, because it allows shavings cut by theauger to be lifted into the hollow chisel and ejected. If the gap istoo small or too large, the trapped shavings will bind the bit.
5. Lubricate
the auger bit aftermaking sure it spins freely inside the chisel.

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