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3-Piece Spiral Upcut Bit Set (Includes 1/4", 3/8" and 1/2" HSS Spiral Mortising Bits)

Item #
30166
Rating:
74% of 100
3-Piece Spiral Upcut Bit Set (Includes 1/4", 3/8" and 1/2" HSS Spiral Mortising Bits)
3-Piece Spiral Upcut Bit Set (Includes 1/4", 3/8" and 1/2" HSS Spiral Mortising Bits)

The Onsrud spiral router bits are perfect for cutting mortises. The upcut design helps keep the mortise clear of chips and shavings while you cut. This high speed steel set includes 3 upcut bits: 1/4", 3/8" and 1/2".

(1) 1/4" D x 1" L x 1/4" Shank HSS Spiral Mortising Router Bit
(1) 3/8" D x 1" L x 1/2" Shank HSS Spiral Mortising Router Bit
(1) 1/2" D x 1-1/4" L x 1/2" Shank HSS Spiral Mortising Router Bit
More Information
Brand N/A
Manufacturer Part Number 30166
Weight 0.3100
Tech Spec
  • Material: High Speed Steel
Tech Docs N/A
Type N/A
3.7 / 5.0
6 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
4
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2
As expected.
Have only used 1/4" so far. Performed as expected. Would reccomend.
June 16, 2018
Purchased
4 months ago
Woodworking Experience:
Advanced
Worked good on pine box.
Good clean cuts
December 3, 2017
Purchased
11 months ago
Woodworking Experience:
Intermediate
Cuts cleanly and smoothly
Like butter!
July 21, 2017
Purchased
1 year ago
Woodworking Experience:
Advanced
Best Cutters you can buy for finger joints
March 25, 2017
Purchased
1 year ago
Not a good box joint or mortise bit
I bought the Rockler Box Joint Jig--which works great--and bought these bits--they could barely make it though pine--the did not cut well at all. I then tried to cut a mortise with them, and they quickly dulled out after a few attempts. I called Rockler and they sent me a return slip. I upgraded to the Freud set and it was like cutting butter--I made a Poplar drawer--had scrap, and it cut it great, and it all came together nicely. Don't waste your money upgrade to the Freud you will be happy you did. Rocker Customer Service is great.
March 8, 2016
Purchased
over 2 years ago
Woodworking Experience:
Intermediate
Not good for box joint
These bits do not work well for box joints. They do not produce a consistent width to make tight joints.
January 30, 2016
Woodworking Experience:
Intermediate
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Browse 3 questions Browse 3 questions and 23 answers
Why did you choose this?
Rockler Store
Make box joints for drawers I"m building
THEODORE E on May 11, 2018
Gift card.
Marvin O on Jan 11, 2018
Make box joints for drawers I"m building
THEODORE E on May 11, 2018
To use with router table spline jig
JOE W on Apr 20, 2018
Gift card.
Marvin O on Jan 11, 2018
Recommended to use with the Rockler router table box joint jig. Hope there is an improvement over using straight router bits.
Eddie on Dec 30, 2017
Goes with the box joint jig.
John M on Jul 19, 2017
box joints
Mark K on Jan 29, 2017
To use with my Router table Box Joint Jig
Thomas L D on Dec 18, 2016
needed bits
Steve S on Jun 13, 2016
Up cut bits are suppose to be better for box joints
Lawrence F on May 14, 2016
For box joints
Thomas P on Apr 5, 2016
Length and design
James M on Jan 14, 2016
I want an excellent set of bits to cut great finger joints.
Jacob O on Dec 31, 2015
for cutting finger joints
Gregg C on Dec 28, 2015
received the rocker box joint jig for christmas and needed the bits to use it.
Anthony L on Dec 25, 2015
Husband requested
Kathleen S on Dec 5, 2015
have seen them used with great success. bout time to get one!
Harriet C on Nov 30, 2015
Needed the bits for the newly purchased Router table box joint jig. I like the 3 piece concept for better choices in box joint setups.
D. R on Aug 9, 2015
birthday gift
Don B on Jul 31, 2015
good reviews
James R on Jun 19, 2015
Husband is a wood worker and these are very handy.
Nancy S on Jun 14, 2015
Wanted it
William F on Jun 12, 2015
To use with router table spline jig
JOE W on Apr 20, 2018
Recommended to use with the Rockler router table box joint jig. Hope there is an improvement over using straight router bits.
Eddie on Dec 30, 2017
Does a case come with the bits?
Dstudder on Aug 5, 2017
BEST ANSWER: Dstudder- I bought these bits awhile ago and while they did not come in a typical hard blown plastic box, each came in a secure plastic tube which protects the edges. Hope this helps!
What's the advantage of using up cut bits to cut box joints?
Jay L on Mar 19, 2017
BEST ANSWER: The advantage to these bits over straight bits is the up cut bits pull the chips out and away from the cut you are making. Straight bits tend to leave the chips and dust in the groove