FALL BUILD FEST IS ON - Shop Exclusive Deals & Offers!
+ 12% Off Select AR15 Parts Use Code: ARBUILD12

FALL BUILD FEST IS ON - Shop Exclusive Deals & Offers!
+ 12% Off Select AR15 Parts Use Code: ARBUILD12

Aircraft Counterbore, 9/16", Piloted
Aircraft Counterbore, 9/16", Piloted
Aircraft Counterbore, 1/4", Piloted
Aircraft Counterbore, 5/16", Piloted
Aircraft Counterbore, 9/16", Piloted
Aircraft Counterbore, 9/16", Piloted
Aircraft Counterbore, 1/4", Piloted
Aircraft Counterbore, 5/16", Piloted
None
None OFF

BROWNELLS - Aircraft Counterbore, 1/4", Piloted

2 Reviews
Diameter (in)
Aircraft Counterbore, 1/4", Piloted
Brownells #
549890216
MFR #
08902165
UPC
050806023222
$10.99
Coupon Code
Purchase Limit Help

In stock

Standard Shipping Estimated Delivery
Estimated delivery: Oct 6
Can we ship this to you? (US only)
{{restriction.odmShipCheckMessage}}
Specifications
Diameter (in):
0.2500
Model Number:
1/4
Color:
Silver
Quantity:
1
Material:
Steel
Restriction
Can we ship this to you? (US only)
{{restriction.odmShipCheckMessage}}
What is the BROWNELLS - Aircraft Counterbore, 1/4", Piloted?

Piloted counterbores allow you to accurately drill stocks with existing screw holes for pillar bedding, with no fear of the cutter wandering. Interchangeable pilots provide increased versatility, allowing two cutters to do the work of six. Makes adding pillar bedding blocks quick and easy. Pilots and cutters available in popular sizes to accommodate most bedding needs.


SPECS: Counterbore: HSS Steel, 1/4" (6.3mm) shank. 9/16" (14.4mm) cutter, 1/8" (3.1mm) pilot hole. 2-13/16" (7.1cm) long. Pilot: Carbon steel, 1/8," (3.1mm) shank, 1/4" (6.3mm) and 5/16" (7.9mm) diameter.


Please select a FFL Dealer
Dealers near
Nearest first
arrow-down

Enter dealer or account folder information

* Required fields

MANUALLY ENTERED

Note: Hours and fees may change. Contact the dealer to confirm current information.

* Must accept required fields.

pin wrong
No dealers found

Please search by another zip code or city and state to find the nearest dealer.

  • Pin in Brownells Featured Dealers

    Choosing a Brownells Featured Dealer is the fastest and easiest way to complete your purchase. Brownells Featured Dealers have agreed to perform FFL transfers on guns purchased online from Brownells. We have their necessary FFL information on file and your FFL order will ship directly to them once processed.

  • Pin in Standard Dealers

    Standard Dealers have not yet agreed to perform FFL transfers on guns purchased online from Brownells. If you choose a Standard Dealer, you are responsible for contacting that dealer and arranging for the dealer to submit a signed copy of an FFL and to give Brownells permission to ship the gun.

  • Pin in Not Available Dealers

    Not Available Dealers are dealers Brownells cannot ship guns to at this time. These dealers either do not meet our requirements for FFL transfers, or prefer to not perform transfers for guns purchased online from Brownells.

Brownells Retail Store
Quickest, Hassle-Free Transfer

Pin in
Phone
Accepts ammo transfers Accepts NFA transfers
You must select required check box

Note:

Listed hours & fees are not guaranteed and subject to change. Please contact the dealer to confirm current hours & fees.
* Must accept required fields.
dealers near

Alternative products

Right Badge OFF  
5 Stars

200

300

Add on

Right Badge OFF  
5 Stars

200

300

AIRCRAFT COUNTERBORE REVIEWS

4.0
2 Reviews
5 Stars
50%
4 Stars
0%
3 Stars
50%
2 Stars
0%
1 Stars
0%
5
Best Bit for Installing 9/16" Pillars
By far the best drill for installing Brownells pillars. They literally snap right into the hole and it's easy to get the rear pillar angle correct with the right pilot. Much more durable that Forstner bits.
3
works BUT not great
Was not very sharp tended to rip rather than cut Pilot is to short I preferred the longer forester drill with the longer pilot But IT Only comes with one size pilot so did the best i could with what ii had to work with. project came out alright but could have been easier with a sharp tool and a longer pilot.
Customer Questions
0 Questions