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Decimal Equivalent:
.1875"
.2031"
.2344"
.2500"
.2656"
.2812"
.2969"
.3125"
.3281"
.3438"
.3594"
.3750"
.3906"
.4062"
.4219"
.4375"
.4531"
.4688"
.4844"
.5000"
.5156"
.5312"
.5469"
.5625"
.5781"
.5938"
.6094"
.6250"
.6406"
.6562"
.6719"
.6875"
.7031"
.7188"
.7344"
.7500"
.7656"
.7812"
.7969"
.8125"
.8281"
.8438"
.8594"
.8750"
.8906"
.9062"
.9219"
.9375"
.9531"
.9688"
.9844"
1.0000"
1.0625"
1.1250"
1.1875"
1.2500"
1.3125"
1.3750"
1.4375"
1.5000"
1.5625"
1.6250"
1.6875"
1.7500"
1.8125"
1.8700"
1.9375"
2.0000"
2.1250"
2.1875"
2.2500"
2.3750"
2.5000"
2.5625"
2.6250"
2.7500"
2.8750"
3.0000"
Size:
3/16"
13/64"
7/32"
15/64"
1/4"
17/64"
9/32"
19/64"
5/16"
21/64"
11/32"
23/64"
3/8"
25/64"
13/32"
27/64"
7/16"
29/64"
15/32"
31/64"
1/2"
33/64"
17/32"
35/64"
9/16"
37/64"
19/32"
39/64"
5/8"
41/64"
21/32"
43/64"
11/16"
45/64"
23/32"
47/64"
3/4"
49/64"
25/32"
51/64"
13/16"
53/64"
27/32"
55/64"
7/8"
57/64"
29/32"
59/64"
15/16"
61/64"
31/32"
63/64"
1"
1-1/16"
1-1/8"
1-3/16"
1-1/4"
1-5/16"
1-3/8"
1-7/16"
1-1/2"
1-9/16"
1-5/8"
1-11/16"
1-3/4"
1-13/16"
1-7/8"
1-15/16"
2"
2-1/16"
2-1/8"
2-3/16"
2-1/4"
2-5/16"
2-3/8"
2-7/16"
2-1/2"
2-9/16"
2-5/8"
2-3/4"
2-7/8"
3"
Shank Size:
15/64"
17/64"
19/64"
5/16"
3/8"
7/16"
1/2"
5/8"
3/4"
1"
1-1/4"
1-1/2"
1-3/4"
Overall Length:
3"
3-13/16"
4-1/16"
4-5/16"
5-1/8"
5-3/8"
6-1/8"
6-3/8"
6-5/8"
7-7/8"
8-1/8"
8-3/8"
9-7/8"
Geometry/Tool Specs:
1/2" Pilot Diameter
1/4" Pilot Diameter
3/16" Pilot Diameter
3/32" Pilot Diameter
3/8" Pilot Diameter
5/16" Pilot Diameter
5/32" Pilot Diameter
7/16" Pilot Diameter
Shank Type:
Straight Shank
Taper Shank

Counterbores for Interchangeable Pilots

Counterbores for Interchangeable Pilots
Used to enlarge the openings of a hole to allow room for the head of a screw. Also good for general purpose counterboring & spot facing. For use with interchangeable pilots.
 More Info   Decimal Equivalent:   Size:   Shank Size:   Overall Length:   Size Type:   Geometry/Tool Specs:   Shank Type:   Brand:   Price   Buy Now 
 
1225064
 
1.0000" 1" 3/4" 6-3/8" Inch Size 5/16" Pilot Diameter Straight Shank MEDA - Superior Import  $41.88 
 
1226064
 
1.0000" 1" 3/4" 6-3/8" Inch Size 5/16" Pilot Diameter Taper Shank MEDA - Superior Import  $44.34 
 
1225068
 
1.0625" 1-1/16" 3/4" 6-3/8" Inch Size 5/16" Pilot Diameter Straight Shank MEDA - Superior Import  $53.76 
 
1226068
 
1.0625" 1-1/16" 3/4" 6-3/8" Inch Size 5/16" Pilot Diameter Taper Shank MEDA - Superior Import  $64.32 
 
1225096
 
1.5000" 1-1/2" 1-1/4" 7-7/8" Inch Size 3/8" Pilot Diameter Straight Shank MEDA - Superior Import  $87.00 
 
1226096
 
1.5000" 1-1/2" 1-1/4" 7-7/8" Inch Size 3/8" Pilot Diameter Taper Shank MEDA - Superior Import  $88.14 
 
1225080
 
1.2500" 1-1/4" 1" 6-5/8" Inch Size 3/8" Pilot Diameter Straight Shank MEDA - Superior Import  $67.98 
 
1226080
 
1.2500" 1-1/4" 1" 6-5/8" Inch Size 3/8" Pilot Diameter Taper Shank MEDA - Superior Import  $71.10 
 
1225072
 
1.1250" 1-1/8" 1" 6-3/8" Inch Size 5/16" Pilot Diameter Straight Shank MEDA - Superior Import  $55.08 
 
1226072
 
1.1250" 1-1/8" 1" 6-3/8" Inch Size 5/16" Pilot Diameter Taper Shank MEDA - Superior Import  $55.80 
 
1225144
 
1.6875" 1-11/16" 1-1/4" 8-1/8" Inch Size 7/16" Pilot Diameter Straight Shank MEDA - Superior Import  $117.96 
 
1226144
 
1.6875" 1-11/16" 1-1/4" 8-1/8" Inch Size 7/16" Pilot Diameter Taper Shank MEDA - Superior Import  $127.44 
 
1225152
 
1.8125" 1-13/16" 1-1/2" 8-1/8" Inch Size 7/16" Pilot Diameter Straight Shank MEDA - Superior Import  $129.48 
 
1226152
 
1.7500" 1-13/16" 1-1/4" 8-1/8" Inch Size 7/16" Pilot Diameter Taper Shank MEDA - Superior Import  $138.54 
 
1225160
 
1.9375" 1-15/16" 1-1/2" 8-1/8" Inch Size 7/16" Pilot Diameter Straight Shank MEDA - Superior Import  $146.52 
 
1226160
 
1.8700" 1-15/16" 1-1/2" 8-1/8" Inch Size 7/16" Pilot Diameter Taper Shank MEDA - Superior Import  $156.60 
 
1225076
 
1.1875" 1-3/16" 1" 6-3/8" Inch Size 5/16" Pilot Diameter Straight Shank MEDA - Superior Import  $58.20 
 
1226076
 
1.1875" 1-3/16" 1" 6-3/8" Inch Size 5/16" Pilot Diameter Taper Shank MEDA - Superior Import  $64.08 
 
1225148
 
1.7500" 1-3/4" 1-1/4" 8-1/8" Inch Size 7/16" Pilot Diameter Straight Shank MEDA - Superior Import  $117.96 
 
1226148
 
1.6875" 1-3/4" 1-1/4" 8-1/8" Inch Size 7/16" Pilot Diameter Taper Shank MEDA - Superior Import  $127.44 
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warningThis product may contain metals and/or chemicals that are included in the State of California's latest Prop 65 warnings. Exposure may cause cancer and/or reproductive harm. For more information go to www.P65Warnings.ca.gov