OVER 64 YEARS IN BUSINESS  
B & A MANUFACTURING COMPANY
CARBIDE-TIPPED DRILL BITS & ACCESSORIES
PRODUCTS INDEX
drills@bamanufacturing.com

CONTACT US     800-327-8611    SALES     
STANDARDS - TOLERANCES - SPECIFICATIONS
     
 

STANDARDS:  All B&A products comply with ANSI Standards B212.15.1994 where applicable. Since manufacturers of various anchors and holding devices require close tolerances, check the proper clearance and sizes of both the device and bit to be used prior to installation or use.

  
     

A. N. S. I. B212.15-1994
American National Standards Institute
Carbide Tipped Drill Tolerances
SIZE TOLERANCE SIZE TOLERANCE
3/16" 0.206" - 0.198" 11/16" 0.723" - 0.713"
1/4" 0.268" - 0.260" 3/4" 0.787" - 0.775"
5/16" 0.335" - 0.327 7/8" 0.917" - 0.905"
3/8" 0.398" - 0.390" 1" 1.042" - 1.030"
7/16" 0.468" - 0.458" 1-1/8" 1.175" - 1.160"
1/2" 0.530" - 0.520 1-1/4" 1.300" - 1.285"
9/16" 0.592" - 0.582" 1-3/8" 1.425" - 1.410"
5/8" 0.660" - 0.650" 1-1/2" 1.550" - 1.535"

All B & A products comply with ANSI Standard B212.151-1994 where applicable.
Since manufacturers of various anchor and holding devices require close tolerances, check the proper clearance and size of both the device and the drill bit prior to installation or use.
     
 

SPECIFICATIONS:  Although every effort is made to represent our products and specifications as accurately as possible, all product representations and specifications are subject to change without notice.

  
     
  If you don't see it,  just call us and ask!
800-327-8611 or Email us at drills@bamanufacturing.com		  
     

STANDARDS - TOLERANCES - SPECIFICATIONS