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Interchangeable Counterbore Pilots

Interchangeable counterbore pilots are precision components used with counterbore tools to ensure accurate alignment and guidance during hole making applications. Available in various sizes and materials, these pilots enhance the accuracy, efficiency, and tool life of the counterbore process in industries such as aerospace, automotive, and manufacturing.
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Item
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#6090266
47021
Union Butterfield 47021 counterbore body, 1" cutting diameter, High Speed Steel (HSS), 3 flutes, 6-3/8" overall length, 3/4" connection diameter, ANSI standard. Part number 6210055. Short set style for counterboring operations.
Brand Union Butterfield
Model 47021
$111.22 Each
Free shipping
#6090271
470213/16
Union Butterfield 470213/16 counterbore body, 13/16" cutting diameter, High Speed Steel (HSS), 3 flutes, short set style, 5-3/8" overall length, ANSI standard. Part number 6210049. For counterboring operations in machining applications.
Brand Union Butterfield
Model 470213/16
$85.56 Each
Free Shipping orders over $100
#6090275
47022
Union Butterfield 47022 counterbore body, short set, 5 flutes, ANSI standard. Part number 6210065. For counterboring operations in machining applications.
Brand Union Butterfield
Model 47022
$372.94 Each
Free shipping
#6090276
470225/32
Union Butterfield 470225/32 counterbore body, 25/32", 3 flutes. Part number 6210048. Counterbore body for use with interchangeable pilots.
Brand Union Butterfield
Model 470225/32
$88.28 Each
Free Shipping orders over $100
#6090277
470227/32
Union Butterfield 470227/32 counterbore body, 27/32 inch size, 3 flutes, short set style. Part number 6210050. For counterboring operations in metalworking applications.
Brand Union Butterfield
Model 470227/32
$94.89 Each
Free Shipping orders over $100
#6090283
47027/8
Union Butterfield 47027/8 counterbore body, short set, 7/8 inch, 3 flutes. Part number 6210051. For counterboring operations in metalworking applications.
Brand Union Butterfield
Model 47027/8
$90.22 Each
Free Shipping orders over $100
#6090286
47031
Union Butterfield 47031 taper shank counterbore, 2" cutting diameter, High Speed Steel (HSS), 3 flutes, 8-3/8" overall length, ANSI standard. Part number 6210087. For enlarging holes to precise depths with a taper shank mount.
Brand Union Butterfield
Model 47031
$115.50 Each
Free shipping
#6090287
47031.1/16
Union Butterfield 47031.1/16 taper shank counterbore, 1-1/16" cutting diameter, High Speed Steel (HSS), 3 flutes, 6-3/8" overall length, ANSI standard. Part number 6210088. For enlarging holes to accept socket head cap screws.
Brand Union Butterfield
Model 47031.1/16
$131.06 Each
Free shipping
#6090288
47031.1/2
Union Butterfield 47031.1/2 taper shank counterbore, 1-1/2" cutting diameter, High Speed Steel (HSS), 5 flutes, 7-7/8" overall length. Part number 6210094. ANSI standard. For enlarging and spotfacing holes to accept socket head cap screws.
Brand Union Butterfield
Model 47031.1/2
$207.28 Each
Free shipping
#6090289
47031.1/4
Union Butterfield 47031.1/4 taper shank counterbore, 1-1/4" cutting diameter, High Speed Steel (HSS), 5 flutes, 6-5/8" overall length, ANSI standard. Part number 6210091. For enlarging holes to accept socket head cap screws.
Brand Union Butterfield
Model 47031.1/4
$166.83 Each
Free shipping
#6090290
47031.1/8
Union Butterfield 47031.1/8 taper shank counterbore, 1-1/8" cutting diameter, High Speed Steel (HSS), 3 flutes, 6-3/8" overall length, ANSI standard. Part number 6210089. 7/8" connection diameter, 1-3/4" maximum depth of cut.
Brand Union Butterfield
Model 47031.1/8
$138.06 Each
Free shipping
#6090291
47031.3/16
Union Butterfield 47031.3/16 taper shank counterbore, 1-3/16" cutting diameter, High Speed Steel (HSS), 3 flutes, 6-3/8" overall length, ANSI standard. Part number 6210090. 7/8" connection diameter, 1-3/4" maximum depth of cut.
Brand Union Butterfield
Model 47031.3/16
$140.78 Each
Free shipping
#6090292
47031.3/8
Union Butterfield 47031.3/8 taper shank counterbore, 1-3/8 inch cutting diameter, 5 flutes. Part number 6210093. For enlarging and spotfacing holes to precise depths in machining applications.
Brand Union Butterfield
Model 47031.3/8
$185.11 Each
Free shipping
#6090293
47031.5/8
Union Butterfield 47031.5/8 taper shank counterbore, 1-5/8 inch cutting diameter, 5 flutes. Part number 6210095. For enlarging and spotfacing holes to precise depths in machining applications.
Brand Union Butterfield
Model 47031.5/8
$282.33 Each
Free shipping
#6090296
470313/16
Union Butterfield 470313/16 taper shank counterbore, 13/16" cutting diameter, 3 flutes. Part number 6210084. For enlarging and spot-facing holes to accept socket head cap screws.
Brand Union Butterfield
Model 470313/16
$93.33 Each
Free Shipping orders over $100
#6090297
470315/16
Union Butterfield 470315/16 taper shank counterbore, 15/16 inch body diameter, 3 flutes. Part number 6210086. For enlarging and spot-facing holes to accept socket head cap screws.
Brand Union Butterfield
Model 470315/16
$101.89 Each
Free shipping
#6090298
47032
Union Butterfield 47032 taper shank counterbore, 1-3/8" cutting diameter, High Speed Steel (HSS), 5 flutes, 6-5/8" overall length. Part number 6210098. ANSI standard. For counterboring holes to accept socket head cap screws.
Brand Union Butterfield
Model 47032
$370.61 Each
Free shipping
#6090299
47032.1/8
Union Butterfield 47032.1/8 taper shank counterbore, 2-1/8" cutting diameter, High Speed Steel (HSS), 5 flutes, 9-7/8" overall length, ANSI standard. Part number 6210099. For enlarging holes to precise diameters with a flat-bottomed finish.
Brand Union Butterfield
Model 47032.1/8
$470.17 Each
Free shipping
#6090300
47033/4
Union Butterfield 47033/4 taper shank counterbore, 3/4", High Speed Steel (HSS), 3 flutes. Part number 6210082. 5-3/8" overall length, ANSI standard.
Brand Union Butterfield
Model 47033/4
$87.50 Each
Free Shipping orders over $100
#6090305
470513/16
Union Butterfield 470513/16 counterbore, 13/16", High Speed Steel (HSS), 3 flutes. Part number 6210125. 5-3/8" overall length, ANSI standard.
Brand Union Butterfield
Model 470513/16
Obsolete
#6090306
470515/16
Union Butterfield 470515/16 counterbore, 15/16" cutting diameter, High Speed Steel (HSS), 3 flutes, 5-3/8" overall length, ANSI standard. Part number 6210127. Long series counterbore for precision hole enlargement and spot facing.
Brand Union Butterfield
Model 470515/16
$82.83 Each
Free Shipping orders over $100
#6090310
470525/32
Union Butterfield 470525/32 counterbore, 25/32", High Speed Steel (HSS), 3 flutes. Part number 6210124. 5-3/8" overall length, ANSI standard.
Brand Union Butterfield
Model 470525/32
$74.67 Each
Free Shipping orders over $100
#6090311
47053/4
Union Butterfield 47053/4 counterbore, 3/4", High Speed Steel (HSS), 3 flutes. Part number 6210123. 5-3/8" overall length, ANSI standard.
Brand Union Butterfield
Model 47053/4
$71.94 Each
Free Shipping orders over $100
#6090316
47057/8
Union Butterfield 47057/8 counterbore, 7/8", High Speed Steel (HSS), 3 flutes. Part number 6210126. 5-3/8" overall length, ANSI standard.
Brand Union Butterfield
Model 47057/8
$78.17 Each
Free Shipping orders over $100
#6090318
47061
Union Butterfield 47061 counterbore, 1" cutting diameter, High Speed Steel (HSS), 4 flutes, 2-13/16" overall length, 1/4" connection diameter, ANSI standard. Part number 6210161. Aircraft set short series for precision counterboring.
Brand Union Butterfield
Model 47061
$87.50 Each
Free Shipping orders over $100
#6114331
C46421
Cleveland C46421 3/16 879 HS CBORE
Brand Cleveland
Model C46421
$121.78 Each
Free shipping
#6114332
C46422
Cleveland C46422 7/32 879 HS CBORE
Brand Cleveland
Model C46422
$121.78 Each
Free shipping
#6114339
C46429
Cleveland C46429 7/16 879 HS CBORE
Brand Cleveland
Model C46429
$139.21 Each
Free shipping
#6114349
C46439
Cleveland C46439 3/4 879 HS CBORE
Brand Cleveland
Model C46439
$187.28 Each
Free shipping
#6114431
C46886
Cleveland C46886 1/4 884 HS CBORE
Brand Cleveland
Model C46886
$103.65 Each
Free shipping
#6114433
C46890
Cleveland C46890 3/8 884 HS CBORE
Brand Cleveland
Model C46890
$114.72 Each
Free shipping
#6114437
C46894
Cleveland C46894 1/2 884 HS CBORE
Brand Cleveland
Model C46894
$122.04 Each
Free shipping
#6114438
C46896
Cleveland C46896 9/16 884 HS CBORE
Brand Cleveland
Model C46896
$130.12 Each
Free shipping
#6114440
C46900
Cleveland C46900 11/16 884 HS CBORE
Brand Cleveland
Model C46900
$140.60 Each
Free shipping
#6114441
C46902
Cleveland C46902 3/4 884 HS CBORE
Brand Cleveland
Model C46902
$142.71 Each
Free shipping
#6114442
C46904
Cleveland C46904 13/16 884 HS CBORE
Brand Cleveland
Model C46904
$161.95 Each
Free shipping
#6114443
C46906
Cleveland C46906 7/8 884 HS CBORE
Brand Cleveland
Model C46906
$161.95 Each
Free shipping
#6114445
C46910
Cleveland C46910 1IN 884 HS CBORE
Brand Cleveland
Model C46910
$181.37 Each
Free shipping
#6168343
500-0.7500
Alvord-Polk 03033 500-0.7500 Series# 500 Size .7500 Capscrew Counterbore (On Size) 3/4
Brand Alvord-Polk Tool
Model 500-0.7500
$135.53 Each
Free shipping
#6168346
500-0.8750
Alvord-Polk 03036 500-0.8750 Series# 500 Size .8750 Capscrew Counterbore (On Size) 7/8
Brand Alvord-Polk Tool
Model 500-0.8750
$171.10 Each
Free shipping
#6168348
300-0.8750
Alvord-Polk 03038 300-0.8750 Series# 300 Size .8750 Capscrew Counterbore (1/32 Oversize) 7/8
Brand Alvord-Polk Tool
Model 300-0.8750
$171.10 Each
Free shipping
#6168349
500-1.0000
Alvord-Polk 03039 500-1.0000 Series# 500 Size 1.0000 Capscrew Counterbore (On Size) 1"
Brand Alvord-Polk Tool
Model 500-1.0000
$213.37 Each
Free shipping
#6168351
300-1.0000
Alvord-Polk 03041 300-1.0000 Series# 300 Size 1.0000 Capscrew Counterbore (1/32 Oversize) 1"
Brand Alvord-Polk Tool
Model 300-1.0000
$213.37 Each
Free shipping
#6168359
401-14
Alvord-Polk 03087 401-14 Series# 401 Size 14MM Capscrew Counterbore (Metric)
Brand Alvord-Polk Tool
Model 401-14
$87.36 Each
Free Shipping orders over $100
#6168360
401-16
Alvord-Polk 03088 401-16 Series# 401 Size 16MM Capscrew Counterbore (Metric)
Brand Alvord-Polk Tool
Model 401-16
$114.70 Each
Free shipping
#6168361
401-20
Alvord-Polk 03089 401-20 Series# 401 Size 20MM Capscrew Counterbore (Metric)
Brand Alvord-Polk Tool
Model 401-20
$165.77 Each
Free shipping
#6169864
300S10
Alvord-Polk 29130 300S10 (SET) (300 SERIES) (4-40 thru 1/2) (10 Tools)
Brand Alvord-Polk Tool
Model 300S10
$458.33 Each
Free shipping
#6169865
400S10
Alvord-Polk 29131 400S10 (SET) (400 SERIES) (4-40 thru 1/2) (10 Tools)
Brand Alvord-Polk Tool
Model 400S10
$458.33 Each
Free shipping
#6169866
500S10
Alvord-Polk 29132 500S10 (SET) (500 SERIES) (4-40 thru 1/2) (10 Tools)
Brand Alvord-Polk Tool
Model 500S10
$458.33 Each
Free shipping
#6169867
401S10
Alvord-Polk 29133 401S10 (SET) (401 SERIES) (3mm thru 14mm) (8 Tools)
Brand Alvord-Polk Tool
Model 401S10
$437.05 Each
Free shipping
#6169898
507-0.6250
Alvord-Polk 33030 507-0.6250 Series# 507 Size .6250 TiN Coated Capscrew Counterbore (On Size) 5/8
Brand Alvord-Polk Tool
Model 507-0.6250
$145.63 Each
Free shipping
#6169902
407-0.7500
Alvord-Polk 33034 407-0.7500 Series# 407 Size .7500 TiN Coated Capscrew Counterbore (1/64 Oversize) 3/4
Brand Alvord-Polk Tool
Model 407-0.7500
$183.07 Each
Free shipping
#6169903
307-0.7500
Alvord-Polk 33035 307-0.7500 Series# 307 Size .7500 TiN Coated Capscrew Counterbore (1/32 Oversize) 3/4
Brand Alvord-Polk Tool
Model 307-0.7500
$183.07 Each
Free shipping
#6169904
507-0.8750
Alvord-Polk 33036 507-0.8750 Series# 507 Size .8750 TiN Coated Capscrew Counterbore (On Size) 7/8
Brand Alvord-Polk Tool
Model 507-0.8750
$231.53 Each
Free shipping
#6169907
507-1.0000
Alvord-Polk 33039 507-1.0000 Series# 507 Size 1.0000 TiN Coated Capscrew Counterbore (On Size) 1"
Brand Alvord-Polk Tool
Model 507-1.0000
$291.20 Each
Free shipping
#6169916
471-12
Alvord-Polk 33086 471-12 Series# 471 Size 12MM TiN Coated Capscrew Counterbore (Metric)
Brand Alvord-Polk Tool
Model 471-12
$98.57 Each
Free Shipping orders over $100
#6169917
471-14
Alvord-Polk 33087 471-14 Series# 471 Size 14MM TiN Coated Capscrew Counterbore (Metric)
Brand Alvord-Polk Tool
Model 471-14
$120.40 Each
Free shipping
#6169918
471-16
Alvord-Polk 33088 471-16 Series# 471 Size 16MM TiN Coated Capscrew Counterbore (Metric)
Brand Alvord-Polk Tool
Model 471-16
$147.87 Each
Free shipping
#6169919
471-20
Alvord-Polk 33089 471-20 Series# 471 Size 20MM TiN Coated Capscrew Counterbore (Metric)
Brand Alvord-Polk Tool
Model 471-20
$176.03 Each
Free shipping
#6279509
00073
Whitney Tool 00073 Counterbore Pilots, 1" Pilot Diameter, 3/8" Shank Diameter
Brand Whitney Tool
Model 00073
$70.01 Each
Free Shipping orders over $100