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RotoZip DC1 Duracut Bit Pack | 
 enlarge | Brand: Roto Zip
Category: Home Improvement
List Price: $12.44
Buy New: $4.74
You Save: $7.70 (62%)
New (21) from $4.74
Avg. Customer Rating:  8 reviews
Sales Rank: 16172
Media: Tools & Hardware
Shipping Weight (lbs): 0.1
Dimensions (in): 4.2 x 2.1 x 0.3
MPN: DC1
Model: DC1
UPC: 720361000166
EAN: 0720361000166
ASIN: B0000224P5
Availability: Usually ships in 1-2 business days
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Product Description
1/4" Solid Carbide Zip Bit, For Long, Fast, Lateral & Irregular Cuts Through Cement Board, Plaster & Lath, RSB Board & Plaster Up To 1" Thick, For Use With RotoZip, RotoMite & SpiraCut Power Tools.
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| Customer Reviews: Read 3 more reviews...
 GREAT TO CONCEAL SPEAKWIRE January 5, 2008
1 out of 1 found this review helpful
I used this to route a trough up my wall to conceal speak wire to my home theater speakers. It worked like a charm!!! My house is 1955 with plaster/mortar walls. I also used the dust extractor adapter - What a charm ABSOLUTELY NO DUST!!! If you have a Rotozip and a dust problem you need the dust extractor!!!
Works quite well in concrete board December 8, 2006
2 out of 2 found this review helpful
I bought this bit at home depot for $8 and used it to cut 4 sheets of hardebacker board into a circle for an outdoor mosaic table substrate, using a 3 1/4 hp router and trammel arm. The bit worked quite well, athough I noticed I had to get the RPMs up on the variable speed router to get it to cut easily. I doubt using this bit in a lower powered roto zip could've produced the same results.
Perhaps the folks who don't like this bit should retry it in a router.
DuraCut Bit OK for soft to medium-hard materials September 3, 2005
10 out of 10 found this review helpful
RotoZip DC1 Duracut Bit
Pros:
- 1/4" bits have significantly greater resistance to breaking than 1/8" bits. It's still possible to snap one, but you have to use much more force. If you are frustrated with how easy it is to snap 1/8" bits, and your application will be OK with a 1/4" bit, try one of these. (Of course, the tool will need a 1/4" collet.)
- Carbide cutters last much longer than tool steel.
- Works quite well on soft materials, such as most wood, plastics, and drywall. Has an excellent life if used only on softer materials. They work best at very high speed. I.e., instead of a drill, try them in a router or high-speed rotary cutter.
Cons:
- As with any such bit, when the material gets harder, it becomes less effective -- to useless. E.g., using it on hard products will dull the bit in a hurry. E.g., porcelain or other hard tiles, concrete products such as blocks, bricks, concrete stucco (in spite of their sales pitch), glass, steel, etc. They work pretty well on some tile backer-boards, but this wears them out faster.
Other:
Cutting some materials, such as drywall, creates lots of dust. I use a respirator.
Cut what I wanted it to cut August 9, 2004
7 out of 7 found this review helpful
I have a 1940's home and bought this bit to cut the top of my living room wall's perimeter, just below the curve at the coved cieling because the walls are shot and need to be redone. My walls consist of 1/2 inch drywall with 1/4 + inch mortar, and 1/16 plaster and about 10 coats of paint. It's a DUSTY job, but the bit did it without a problem. I was just praying not to hit one of the drywall nails. For the home user, the tool is great and serves its purpose.
Great for plaster/buttonboard remodeling November 10, 2003
10 out of 10 found this review helpful
I am a remodeler and cutting plaster/buttonboard in older houses can be tough. I got only one hole cut for a six 6" can lights before my Greenlee hole saw was ruined. This bit in my Rotozip cut the last five and plenty of holes in the walls for outlets and for pulling wire (unlike a regular electrician I have to patch my holes so a square cut is worth it) . It did take a couple bits (you can see the "teeth" getting worn down) and near the end of a bit's life, you get more cutting by working the bit in and out. It's a dusty job and you should wear more than a cheap dust mask. I also found a full face shield worked much better than goggles.
I have been trying to buy some more of these bits at Home Depot (couldn't wait for a Amazon order) but the clerk told me that Bosch had just bought out Rotozip and that it would be a while before new bits came in under the Bosch name(?)
$10/bit is expensive but they get the job done.
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