|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

08-18-2017, 10:19 PM
|
|
|
|
Join Date: May 2016
Location: St Albert, Alberta, Canada
Posts: 515
|
|
Drilling for CS 4-4 rivets
I'm finishing up the elevator skins and the plans call for CS4-4 blind rivets in the lower skins at the elevator tip in two places. The plans say to final drill 7/64" (which would be between a #30 and #40) which is a bit that I don't have. The trouble is that I'm sizing the rivets in a drill guide and they don't fit in a hole smaller than a #30. Should I just drill a #30 hole and call it a day?
__________________
______________________
Randy P.
1st time builder
RV10 - QB wings and fuse. Working on cabin top
St. Albert, Alberta, Canada
Reserved:C-GRPY
|

08-18-2017, 11:26 PM
|
 |
|
|
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
|
|
Your local hardware store should have the fractional drill bits.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
|

08-18-2017, 11:46 PM
|
|
|
|
Join Date: Jan 2005
Location: Irvine, CA
Posts: 873
|
|
According to this page from Van?s online catalog, a CS4-4 rivet is 1/8 inch in diameter, so it should fit in a #30 hole. MK-319 rivets look similar to a CS4-4, but they are smaller and 7/64 is the correct drill bit.
http://www.vansaircraft.com/cgi-bin/...product=poprvt
You can see a full-size drawing of both types of rivets in section 5 of the kit instructions.
As Gil mentioned, if you indeed need a 7/64 drill bit, they should be pretty easy to find at Home Depot or a similar store.
__________________
Mark
RV-12iS Fuselage
RV-9A Project: Sold
VAF donation made for 2020
|

08-19-2017, 01:02 AM
|
|
|
|
Join Date: May 2016
Location: St Albert, Alberta, Canada
Posts: 515
|
|
Quote:
Originally Posted by rv9builder
According to this page from Van’s online catalog, a CS4-4 rivet is 1/8 inch in diameter, so it should fit in a #30 hole. MK-319 rivets look similar to a CS4-4, but they are smaller and 7/64 is the correct drill bit.
http://www.vansaircraft.com/cgi-bin/...product=poprvt
You can see a full-size drawing of both types of rivets in section 5 of the kit instructions.
As Gil mentioned, if you indeed need a 7/64 drill bit, they should be pretty easy to find at Home Depot or a similar store.
|
Achhhh....my bad. The callout was indeed for an MK-319. Too many hours today. Thanks
__________________
______________________
Randy P.
1st time builder
RV10 - QB wings and fuse. Working on cabin top
St. Albert, Alberta, Canada
Reserved:C-GRPY
|

08-19-2017, 02:08 AM
|
|
|
|
Join Date: Jan 2005
Location: Irvine, CA
Posts: 873
|
|
It?s been a few years since I?ve used MK-319 rivets, but if I remember correctly, first drill to #40 as usual, dimple as usual, then enlarge the dimpled holes to 7/64?. You might want to practice on some scrap before you do this on your elevator. Here's a thread you might find interesting:
http://www.vansairforce.com/communit...d.php?t=128579
__________________
Mark
RV-12iS Fuselage
RV-9A Project: Sold
VAF donation made for 2020
|

08-19-2017, 08:57 AM
|
|
|
|
Join Date: May 2016
Location: St Albert, Alberta, Canada
Posts: 515
|
|
Quote:
Originally Posted by rv9builder
It?s been a few years since I?ve used MK-319 rivets, but if I remember correctly, first drill to #40 as usual, dimple as usual, then enlarge the dimpled holes to 7/64?. You might want to practice on some scrap before you do this on your elevator. Here's a thread you might find interesting:
http://www.vansairforce.com/communit...d.php?t=128579
|
Thanks Mark.
__________________
______________________
Randy P.
1st time builder
RV10 - QB wings and fuse. Working on cabin top
St. Albert, Alberta, Canada
Reserved:C-GRPY
|

08-19-2017, 08:59 AM
|
|
|
|
Join Date: May 2016
Location: St Albert, Alberta, Canada
Posts: 515
|
|
Quote:
Originally Posted by rv7charlie
|
Alas, no Harbour Freight up here in the Great White North. I'm sure I can find some drill bits at the trading post though. 
__________________
______________________
Randy P.
1st time builder
RV10 - QB wings and fuse. Working on cabin top
St. Albert, Alberta, Canada
Reserved:C-GRPY
|

08-19-2017, 10:28 AM
|
 |
|
|
Join Date: Nov 2015
Location: Calgary, Alberta
Posts: 99
|
|
Quote:
Originally Posted by RandyAB
Alas, no Harbour Freight up here in the Great White North. I'm sure I can find some drill bits at the trading post though. 
|
You can buy drill bits from Acklands Grainger, Gregg Distributers or any industrial supply and hardware store in your area.
__________________
Nedim Bek
Almost time.
|

08-19-2017, 10:32 AM
|
|
|
|
Join Date: Apr 2015
Location: Ponte Vedra, FL
Posts: 1,474
|
|
I use a #33 reamer to size up for MK319BS. Works very well, clean hole.
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 05:54 AM.
|