General Tools Revolving Turret Dowelling Jig-840 - The Home Depot

General Tools

Model # 840

Internet # 100349260

Revolving Turret Dowelling Jig

General Tools Revolving Turret Dowelling Jig

This item has been discontinued.
The Home Depot no longer carries this specific product.

$31.97 / each


Model # 840

Internet # 100349260

Since 1910, General Tools has grown to become the recognized industry leader for specialty hand tools and instruments. General's doweling jigs are precision jigs that assure the accurate line-up of dowel holes in furniture and carpentry. Simply clamp the jig onto your work piece to quickly and accurately drill holes for dowel pins requiring exact alignment in the edge, end or surface of your work. Graduations permit direct reading and accurate setting of jig to center line of work

  • Professional Kit includes the following: 3 brad point drill bits: 1/4, 5/16 and 3/8 & 30 dowel pins: 10 of each 1/4, 5/16 and 3/8 & 3 drill stops: 1/4, 5/16 and 3/8 & 6 dowel centers: 2 of each 1/4, 5/16 and 3/8 & 1 hex wrench & Craft Glue
  • A precision jig that assures accurate line up of dowel holes in furniture and carpentry
  • For end-to-end, edge-to-edge and edge-to-end doweling
  • Just lift and turn turret to lock in guide hole
  • Guide bars are graduated for fast positioning of hole center points.
  • Includes instruction manual


Maximum stock size (in.)  Minimum stock size (in.)  .5 
Product Depth (in.)  Product Height (in.) 
Product Width (in.) 
Jig type  Doweling  Material  Aluminum 
Power Tool Accessory Type  Jig  Power Tool Product Type  Power Tool Accessory 
Returnable  90-Day  Tools Product Type  Power Tool 


Rated 2.5 out of 5 by 8 reviewers.
Rated 3.0 out of 5.0 by Dowel Guide-Great Idea I'd waited quite awhile to receive it. Then went home to use it and it moved all over the place when I needed it to remain stationary. I didn't find it any use, unfortunately. April 15, 2015
Rated 2.0 out of 5.0 by Some use, but not worth it.... I recently bought kreg jig and it's been a great & useful tool. When I saw this doweling jig I hoped to bring that kind of efficiency and accuracy to dowel joints. But I was sorely disappointed...The theory looks good, but I can actually make these joints by hand better and easier. You must draw across your 2 pieces with a square (same as by hand) but unless you draw center lines down each piece as well, you will have a difficult time using their graduated scale to find the hole location...If you do, you're already halfway to doing it by hand anyway....Next I assumed that the drill bit was made slightly on the small side so the dowel would fit tightly, but I was wrong. That combined with a certain amount of "wobble" in the turret guaranteed an extra large hole that the dowel falls right out of.......Mysteriously, the kit includes some pieces called "dowel & tenon centers", but their use is NOT covered in the booklet. There seems to be one for each hole in the turret except one, and 2 duplicates...They can be used for marking centers for drilling, but all in all it is easier AND more accurate to do this work without the jig...Wish I had my $30 back. Bought it last fall and didn't get around to trying it until following summer, so can't return it. August 7, 2011
Rated 1.0 out of 5.0 by This product is too weak and sloppy for accurate drilling. The rotating drill guide is held in place by a spring to make it easy to changre hole sizes but provides very little support for holding the drill perpendicular. The rotating drill guide is aluminum which wears out quickly. The clamp slips easily, I had to glue sandpaper to the surfaces to help hold the jig to the work piece. The slide that carries the rotating drill guide wouldn't stay in place and the boss for the the knurled knob broke when I tried to tighten it enough to hold the slide in place. Drilling an accurate perpendicular hole isn't possible.. It is easy to adjust which is the only redeeming feature in my opinion. In order to be a useful tool it needs much longer hardened drill guides and a beefier construction in general. April 14, 2013
Rated 5.0 out of 5.0 by Excellent when used carefully This is an excellent tool. I used it to construct a dining room table and a garage door section. What a user needs to know is a couple of tricks. 1. clamp the boards together with the finished sides facing out and the rough sides touching each other with the edges even. 2. square lines across where the dowels will go. 3. clamp the jig into position, MAKING SURE IT SITS FLAT, on the right side board locations and drill. 4. turn the jig around 180 degrees and clamp jig into position MAKING SURE IT SITS FLAT, on the left side board locations and drill. 5. dry fit without fully clamping together. 6. glue and drill. Be diligent. This tool is meant for precision work, patience is the key. I'll be using this tool again to make some radiator covers in the coming weeks. January 16, 2014
Rated 1.0 out of 5.0 by dissapointed dowelling jig doesn't have hardened drill guides, the soft metal guide is over sized now ,the collar stops don't seat correctly and allen set screws strip out . am looking for dowelling jig without these flaws, as this one is useless. October 22, 2014
Rated 4.0 out of 5.0 by dowelling jig I'm just a hobbist but i take pride in my work. With that said this tool works great and for the money you can't beat it. I'd never made these joints before and right out of the box was able to use it with GREAT results. December 28, 2010
Rated 1.0 out of 5.0 by Clamp mis-alligned When I first used this jig i noticed that the clamp screw did not center on the guide hole. I found that the rods penetrated the clamp base to different depths causing the base to be misaligned. I solved the problem by removing the two screws holding the base to the rods and added a small washer in the bottom of the deeper hole. I would have returned the item, but I needed it too much to wait for a replacement. June 14, 2014
Rated 3.0 out of 5.0 by Average product I looked at several models before deciding on this one. It seemed the most sturdy and looked like it would work well. It wasn't the cheapest, but not the most expensive either. I read the instructions and tried to follow as best I could but after about a dozen holes I'm still not finding much success. The biggest problem is I think I'm drilling the hole straight but when I put the dowel into the hole and try to line it up with the other hole I find that one of the holes is at an angle. Not sure how this happens when the jig is tightened on straight and I'm focusing on drilling straight but it does. The quality of the product is better than average but doesn't do much good if it doesn't help you drill a straight hole and that was my main reason for purchasing. February 5, 2013
  • 2015-04-24T10:59:48.077-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co-hasreviews, tv_8, tr_8
  • loc_en_US, sid_100349260, prod, sort_default
1-8 of 8


Standard Shipping includes delivery by small parcel service. Processing time varies by product.

If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.