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$12.99 Set
In stock
Split-ring stop collars clamp around drill bits and hold securely in place. When tightened, they clamp over the complete diameter of the drill bit shaft without marring.
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7-Pc. Split Collar Set

Item #
68946
Rating:
64% of 100
42  Reviews
7-Pc. Split Collar Set
7-Pc. Split Collar Set

Split-ring stop collars clamp around drill bits and hold securely in place. When tightened, they clamp over the complete diameter of the drill bit shaft without marring. The set includes collars for 1/8", 3/16", 1/4", 5/16", 3/8", 7/16" and 1/2" size bits. A 3mm (1/9") hex key for adjustments is also included with the set. Select the proper collar diameter, slide it onto the drill bit, and tighten the single 3mm hex screw. The split ring design tightens fully around the drill bit securing it in place. No damage to the drill's side edges or flutes will occur! Stop Collars allow you to set precise cutting depths on any countersink or drill bit with a corresponding diameter.

(1) 1/8" Collar
(1) 3/16" Collar
(1) 1/4" Collar
(1) 5/16" Collar
(1) 3/8" Collar
(1) 7/16" Collar
(1) 1/2" Collar
(1) Pack Collar Screws
(1) 3mm (1/9") Hex Key
More Information
Brand Insty-Bit
Manufacturer Part Number 72001-31
Weight 0.4000
Tech Spec No
Technical Documents No
Bit Material No
Bit Size No
Prop 65 WarningWARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov

Prop 65 WarningWARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.
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3.2 / 5.0
42 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
13
9
5
2
13
Works great
Works great, good price
October 17, 2018
Purchased
 1 month ago
Excellent product
October 16, 2018
Purchased
 3 weeks ago
Great addition to your tool box
The set has really made shallow depth drilling a breeze. Well made, easy to use. Thanks
September 4, 2018
Purchased
 2 months ago
Woodworking Experience:
Advanced
Big help.
Well made. Works well.
July 16, 2018
Purchased
 3 months ago
Woodworking Experience:
Intermediate
Excellent quality.Better than available at big box stores.
January 10, 2018
Purchased
 10 months ago
Woodworking Experience:
Advanced
Timesaver
Adjusts easily to set drill depth.I have been able to throw away a collection of dowels with holes thru the middle that I had been using in the past. Already two projects have been done using the collars.
December 27, 2017
Purchased
 10 months ago
Woodworking Experience:
Intermediate
they do what they were designed to do
October 10, 2017
Purchased
 1 year ago
Woodworking Experience:
Advanced
Working well so far
It appears to be doing what it was supposed to do.
January 23, 2017
Purchased
 1 year ago
Woodworking Experience:
Beginner
Excellent
Easy to install and gives a uniform depth so it removes all the guess work out of counter sinking. My accuracy and speed increased ten fold.
August 11, 2016
Purchased
 over 2 years ago
Woodworking Experience:
Advanced
Theses drill collars are great. Makes drilling a hole to a precise depth a breeze
February 21, 2016
Purchased
 over 2 years ago
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Browse 2 questions Browse 2 questions and 51 answers
Why did you choose this?
Rockler Store
Decide to order these to help set bit depth, and not cut to deep.
Darrel G on Sep 28, 2018
Need it for woodworking project.
Marlene L on Jun 23, 2018
Decide to order these to help set bit depth, and not cut to deep.
Darrel G on Sep 28, 2018
Better than painter's tape!
Tatiana L on Sep 27, 2018
Need it for woodworking project.
Marlene L on Jun 23, 2018
To set-up for different depths.
Arthur A on Jun 18, 2018
WORKED WELL AND HELD UNLIKE OTHERS ON THE MARKET
Mark D on Jun 12, 2018
Tape is great for setting depth, but you can't compare to the accuracy and reliability of a split collar!
Michael H on May 6, 2018
Couldn’t find this product in any of the big box stores.
Jerry M on Mar 5, 2018
A means is needed to get the correct depth when drilling holes for dowel pins with a hand drill. Tape was used on the drill bit, the bottom edge of the tape gets frayed when the tape is close to the drill guide.
Douglas D on Mar 5, 2018
Prompted by the set with match Drill Bit set
Shawn V on Dec 7, 2017
Same as above.
Virginia B on Dec 3, 2017
Myself
Jammy H on Aug 18, 2017
Need to set accurate drill depths without marring the wood
Lloyd L on Aug 2, 2017
As a retired machinist I know that split collar stops ar e far better than just set screws.
VEZETTER W on Jul 26, 2017
gauge depth of holes
GLENN S on Jun 22, 2017
Need something to help control the depth of the holes I drill.
John L on Jun 16, 2017
Wanted a quality set of collars
Phillip B on Apr 18, 2017
Split collars work so much better and slip less than the set-screw type.
Gary K on Apr 14, 2017
works well if tightened on bit enough. I took a small length of aluminum tube to cover the bit between the chuck and the stop to keep the collar from walking up the bit (great help)
Thonas C on Mar 9, 2017
Adjustable Depth stops for multiple diameter bits helps keeps uniform production with ease
Eric M on Feb 19, 2017
I'm working on a workbench w/ a lot of dowel holes to drill
Kevin W on Feb 15, 2017
my slip
micah r on Feb 9, 2017
Product badly marks the wood
David M on Dec 26, 2016
To repeat the depth
Steve H on Dec 25, 2016
I need it.
Michael N on Dec 23, 2016
for my drill press and hand drill
kelly L on Nov 30, 2016
to adjust depth of drill
MICHAEL K on Nov 23, 2016
I needed it.
David S on Nov 18, 2016
work OK
Michael G on Nov 3, 2016
I want to set up a dedicated index of stop-collared bits for drilling the shelf standard holes in the shelf carcass sides.
Alfetta159 on Sep 13, 2016
Easy to use
Edward B on Jul 9, 2016
to eliminate my mistakes
Richard S on Jul 7, 2016
control dowelling depth
Victor P on Jul 6, 2016
aid in drilling holes
charles r on Jun 28, 2016
to support doweling kit for multiple dowel holes at same depth
Richard W on May 25, 2016
set depth on drill bits
James F on May 20, 2016
Reviews were not great, but I needed something to safely drill shelf pin holes in an already built entertainment center I am modifying.
Ron S on May 15, 2016
Some of mine are broken
Frank Z on May 7, 2016
for depth drilling control.
Vincent O on Apr 23, 2016
When using dowells it is guess work how deep to drill. Now I can get it right every time.
Richard W on Mar 6, 2016
I needed a complete set of collars
Shirley V on Mar 5, 2016
To drill holes of a consistant depth.
James D on Feb 23, 2016
This is something that I have always needed
David W on Feb 21, 2016
These will keep the depth correct when drilling holes for the dowels
marvin d on Jan 5, 2016
For doweling.
Joe R on Jan 1, 2016
Easy storage and neater hole drilling
Louis M on Dec 26, 2015
general use
Mark R on Dec 13, 2015
i had a set before i let someone use
never returned
russell g on Dec 8, 2015
to go with doweling kit
Harry S on Nov 24, 2015
on my husband's wish list
Martha R on Nov 23, 2015
Better than using tape on the bits
Erling Y on Oct 18, 2015
Better than painter's tape!
Tatiana L on Sep 27, 2018
To set-up for different depths.
Arthur A on Jun 18, 2018
Is there a metric version?
John S on Apr 29, 2018
BEST ANSWER: I do not know.Enter
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