10-08-98-002A

File in Section:
Service Bulletin
Bulletin No.:
Date:
08 - Body and Accessories
10-08-98-002A
November, 2014
INFORMATION
Subject:
Information on Drilling High Strength Steel Related to Collision Repair
Models:
2015 and Prior GM Passenger Cars and Light Duty Trucks
This Bulletin has been revised to add 2012-2015 Model Years. Please discard Corporate
Bulletin Number 10-08-98-002.
To improve safety, fuel economy and vehicle performance, a number of high strength steels are used in
manufacturing General Motors vehicles. These various high strength steels and their location in specific vehicles
can be found in Service Information | Body Repair | Collision Repair | Visual Identification.
To perform structural or collision damage repairs, it is often necessary to drill out (remove) resistance spot welds in
order to separate the components being serviced from the vehicle structure.
A variety of drill bits are available to remove these resistance spot welds, however the useful life of many of these
drills is limited by the hardness of the high strength steels.
The General Motors Collision Repair Technology Center has recently validated a *CryoCobalt™ drill bit that has
been developed for use with very hard metals. These drill bits performed with exceptional results and should allow
for increased production and reduced overall cost related to resistance spot weld removal. These drill bits can also
be re-sharpened.
These drill bits are available directly from the manufacturer. Refer to the ordering information below.
*We believe this source and their products to be reliable. There may be additional manufacturers of such products/
materials. General Motors does not endorse, indicate any preference for, or assume any responsibility for the
products or material from this firm or for any such items that may be available from other sources.
Ordering Information
Use the part numbers listed below for special GM pricing.
Order Code#
Description
Size
GM801–4–1664
CryoCobalt Drill Bit (min.6)
1/4”
GM801–4–1665
CryoCobalt Drill Bit (min.48)
1/4”
GM801–4–2064
CryoCobalt Drill Bit (min.6)
5/16”
GM801–4–2065
CryoCobalt Drill Bit (min.48)
5/16”
GM801–4–2464
CryoCobalt Drill Bit (min.6)
3/8”
GM801–4–2465
CryoCobalt Drill Bit (min.48)
3/8”
GM999–9–4029
CryoCobalt Drill Bit-Index 1/16” to 1/2”
N/A
Contact the drill bit manufacturer, Partsmaster, at:
Customer Service: 972-438-0523, 7am - 5:30pm CT (E-mail: [email protected])
Technical Service: 972-438-0162, 8am - 5pm CT (E-mail: [email protected])