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PRECISION TOOLS | INDUSTRIAL TOOLS | CUTTING TOOLS | HAND TOOLS
SOCKET CAPSCREW COUNTER BORES
SOCKET CAPSCREW COUNTER BORES
Product Description
  • Use for enlarging holes for the socket heads of cap screws
  • Can also be used for spot facing, enlarging or cleaning holes
  • Solid pilot design will not damage pilot hole
  • Made from high speed steel
 
SCREW
SIZE
PILOT
DIA
OVERALL
LENGTH
CAT NO.
CUTTING
DIA
SHANK
DIA
5 .141” .221” 3/16” 3” ACB-3380
6 .150” .242” 7/32” 3” ACB-3381
8 11/64” 19/64” 1/4” 3” ACB-3382
10 13/64” 21/64” 5/16” 3-1/2” ACB-3383
1/4” 9/32” 13/32” 3/8” 5” ACB-3384
5/16” 11/32” 1/2” 7/16” 5” ACB-3385
3/8” 13/32” 19/32” 1/2” 6” ACB-3386
7/16” 15/32” 11/16” 1/2” 7” ACB-3387
1/2” 17/32” 25/32” 3/4” 7-1/2” ACB-3388
5/8” 21/32” 31/32” 3/4” 7-1/2” ACB-3389
3/4” 25/32” 1-3/16” 1” 8” ACB-3390
 
SETS OF COUNTER BORES
RANGE NO. OF
PCS
CAT NO. FOR
6, 8, 10 & 1/4” 4 ACB-3378
10, 1/4, 5/16 & 3/8” 4 ACB-3374
1/4, 5/16, 3/8, 1/2” 4 ACB-3379
6, 8, 10, 1/4, 5/16, 3/8, 1/2” 7 ACB-3393
1/4, 5/16, 3/8, 1/2, 5/8, 3/4” 6 ACB-3394
Manufacturing specifications

  • ROTATION OF CUTTING: Right hand
  • FLUTE FORM: Straight, spiral
  • DESIGN FEATURES: to ANSI B94.2
  RANGE TOLERANCE
Cutting dia Uoto 3/4” + 0.010”
    + 0.005”
  3/4” to 2” + 0.015”
    + 0.010”
Shank dia 3/16” to 1/2” + 0
    – 0.0005”
  3/4” to 1” + 0
    – 0.001”
Pilot dia upto 1” + 0
    – 0.0005”
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