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Allegiance® (46)
Greenfield® Chicago Latrobe® (4)
Keo (18)
Pittsburg Alleghany® (125)
Type
Aircraft (1)
Balanced Inverted Drive (2)
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Long Pin/Radial Drive (2)
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Shank Diameter
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1/2 in (24)
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3/8 in (12)
5/16 in (2)
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1/2 in (2)
5/8 in (1)
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Item
Countersink (170)
Countersink Set (12)
Machine Countersink (21)
Single End Machinists Countersink (4)
Straight Shank Countersink and Deburring Tool (14)
Straight Shank Countersink and Deburring Tool Set (4)
Overall Length
1 in (1)
1-1/2 in (7)
1-13/32" (1)
1-21/32" (1)
1-3/4 in (10)
1-5/8 in (1)
1-7/16" (1)
2 in (10)
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2-13/16" (1)
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2-5/8 in (6)
2.625 in (1)
3 in (6)
3-1/8 in (1)
3/4 in (1)
4 in (1)
4-1/2 in (1)
4-3/8 in (1)
5 in (3)
5-1/4 in (2)
Series
100 (1)
110 (1)
120 (6)
150 (1)
163 (1)
220 (1)
250 (1)
263 (4)
303 (1)
310 (1)
320 (1)
400 (2)
5752 (3)
ATI488 (1)
CB-M (1)
Screw Size
1/4 in (1)
3/8 in (2)
NO 5 (1)
Shank Type
NO 2 Morse Taper (1)
NO 3 Morse Taper (1)
Plain Round (1)
Straight (59)
Shank Length
1 in (3)
1-1/4 in (2)
3-1/8 in (1)
37/8 in (4)
Maximum Bore Depth
3/8 in (1)
Thread Size
1-1/16-12 (1)
1-5/16-12 (1)
3/4-16 (2)
5/16-24 (1)
Finish
Black Oxide (5)
Bright (3)
TiN Coated (1)
Ultra Fine (1)
Uncoated (73)
Pilot Length
0.688 in (1)
0.937 in (2)
1-1/4 in (2)
Body Diameter
1 in (11)
1" (1)
1"" (16)
1-1/2"" (18)
1-1/4 in (4)
1-1/4"" (20)
1-3/4"" (12)
1/2 in (11)
1/2" (1)
1/2"" (25)
1/4 in (6)
1/4" (1)
1/4"" (12)
2"" (15)
2-1/2 in (1)
3 in (2)
3/16"" (12)
3/4 in (8)
3/4"" (19)
3/8 in (10)
3/8" (1)
3/8"" (14)
5/16 in (1)
5/16"" (11)
5/8 in (7)
5/8"" (19)
7/8"" (12)
Number of Pieces
4 (4)
5 (16)
7 (5)
8 (3)
Minimum Bore Diameter
0.08 in (1)
Head Diameter
0.5156 in (1)
13/16 in (1)
Bore Diameter
0.221 in (1)
0.398 in (1)
0.572 in (1)
0.604 in (1)
1-1/2 in (2)
1-1/8 in (2)
1.5625 in (1)
1/2 in (1)
13/16 in (1)
2 in (1)
3 in (1)
3/4 in (1)
7/16 in (1)
7/8 in (1)
Point Angle
82 deg (1)
Flute Type
Conventional Spiral (4)
Spiral (9)
Included Angle
100 deg (13)
110 deg (3)
120 deg (1)
60 Deg (69)
60 deg (6)
80 Deg (1)
82 Deg (77)
82 deg (28)
90 Deg (74)
90 deg (10)
Number of Flutes
1 (58)
3 (63)
4 (33)
6 (118)
Zero (18)
Cutting Direction
Right Hand (71)
Material
Carbide (6)
Cobalt (16)
Cobalt HSS (6)
HSS (60)
High Speed Steel (207)
M35 Cobalt (18)
Premium High Speed Steel (1)
Solid Carbide (1)
Tungsten Carbide Tipped (6)
Cutting Capacity
11/64 to 37/64"" (2)
13/64 to 45/64"" (2)
19/64 to 59/64"" (2)
23/64 to 1-3/32"" (2)
3/32 to 9/32"" (2)
5/32 to 29/64"" (2)
9/64 to 11/32"" (2)
Tube Diameter
1 in (1)
1/2 in (2)
1/8 in (1)
3/4 in (1)
Specifications
100 deg Countersink (1)
3 Flute, Straight Shank (2)
60 deg Countersink (1)
82 deg Countersink (2)
82 deg Countersink, 1 Flute (2)
82 deg Countersink, 6 Flutes (2)
90 deg Countersink (1)
90 deg Countersink, 6 Flutes (1)
Applicable Materials
Aluminum, Alloy, Carbon and Tool Steels (3)
Cast Iron, Heat-Treated Steels, Titanium Alloys, Plastic and Wood (2)
Standard Pilot Model Number Compatibility
450 and 453 Series Pilots (2)
Nose Diameter
1/4 in (1)
3/8 in (1)
Includes
1/4 in, 3/8 in, 1/2 in, 3/4 in and 1 in Countersink (2)
1/4 in, 5/16 in, 3/8 in, 1/2 in, 5/8 in, 3/4 in and 1 in Countersink (3)
5/16 in, 3/8 in, 1/2 in and 5/8 in Countersink and Deburring Tools (2)
5/16 in, 3/8 in, 1/2 in, 3/4 in and 1 in Countersink and Deburring Tools (3)
NO 6, NO 8, NO 10, 1/4, 5/16, 3/8 and 1/2 in +1/32 in Oversize Precision Cap Screw Counterbores (1)
NO 6, NO 8, NO 10, 1/4, 5/16, 3/8 and 1/2 in +1/64 in Oversize Precision Cap Screw Counterbores (1)
Spot Face Diameter
0.682 in (1)
1.198 in (2)
1.635 in (1)
1.92 in (1)
Screw Type
Socket Head Cap Screw (4)
Fastener Size
NO 1 (1)
NO 2 (1)
RC (1)
Tube Dash Number
NO 12 (1)
NO 16 (1)
NO 2 (1)
NO 8 (2)
Pilot Diameter
0.14 in (1)
0.265 in (1)
0.406 in (1)
0.67 in (2)
0.782 in (1)
0.95 in (1)
1.21 in (1)
1/4 in (3)
1/8 in (1)
3/16 in (1)
3/8 in (1)
5/16 in (4)
7/16 in (1)
F (1)
BC855809
Allegiance 2264-024 Six Flute Countersink, 3/16" x 3/16", 90 Deg, HSS
Compare
BC855808
Pittsburg Alleghany 2282-065 Six Flute Countersink, 5/8" x 3/8", 60 Deg, HSS
Compare
BC855811
Allegiance 2264-080 Six Flute Countersink, 3/4" x 1/2", 90 Deg, HSS
Compare
BC855812
Pittsburg Alleghany 2282-144 Six Flute Countersink, 1-1/2" x 3/4", 60 Deg, HSS
Compare
BC855815
Allegiance 2264-036 Six Flute Countersink, 5/16" x 1/4", 90 Deg, HSS
Compare
BC855814
Pittsburg Alleghany 2283-000 5 Piece Six Flute Countersink Set, 82 Deg, HSS
Compare
BC855813
Allegiance 2264-040 Six Flute Countersink, 3/8" x 1/4", 90 Deg, HSS
Compare
BC855827
Pittsburg Alleghany 2284-028 Six Flute Countersink, 1/4" x 1/4", 90 Deg, HSS
Compare
BC855828
Pittsburg Alleghany 2256-128 Three Flute Countersink, 1-1/4" x 3/4", 60 Deg, HSS
Compare
BC892002
KEO 55027 Single End Countersink, 82 deg, 5/8 in Body, 6 Flutes, HSS, 1/4 in
Compare
BC885798
KEO 55241 Integral Pilot Counterbore Set, 7 Pieces, 3 Flutes, Straight Shank, Cobalt HSS
Compare
BC875111
KEO 53516 Single End Zero Flute Countersink and Deburring Tool, 82 deg, 1-1/4 in Body, Cobalt, 1/2 in
Compare
BC892003
KEO 55256 Single End Machine Countersink, 82 deg, 3/4 in Body, 4 Flutes, Cobalt, 1/2 in
Compare
BC894478
KEO 55058 Single End Straight Shank Countersink Set, 7 Pieces, HSS, Uncoated
Compare
BC910459
WIDIA™ METCUT™ 250 Balanced Inverted Drive Back Spotfacer, 2 in Bore, 0.782 in Pilot, Tungsten Carbide Tipped
Compare
BC910046
WIDIA™ METCUT™ 150 Balanced Inverted Drive Back Spotfacer, 3 in Bore, HSS
Compare
BC894479
KEO 50048 Single End Straight Shank Countersink Set, 7 Pieces, Cobalt, Uncoated
Compare
BC875108
KEO 53510 Single End Zero Flute Countersink and Deburring Tool, 82 deg, 5/16 in Body, Cobalt, 1/4 in
Compare
BC872057
KEO 50058 Single End Straight Shank Countersink Set, 5 Pieces, Cobalt, Uncoated
Compare
BC855831
Pittsburg Alleghany 2284-056 Six Flute Countersink, 1/2" x 3/8", 90 Deg, HSS
Compare
BC855830
Pittsburg Alleghany 2256-144 Three Flute Countersink, 1-1/2" x 3/4", 60 Deg, HSS
Compare
BC855829
Pittsburg Alleghany 2284-040 Six Flute Countersink, 3/8" x 1/4", 90 Deg, HSS
Compare
BC855832
Pittsburg Alleghany 2256-160 Three Flute Countersink, 1-3/4" x 3/4", 60 Deg, HSS
Compare
BC855833
Pittsburg Alleghany 2284-065 Six Flute Countersink, 5/8" x 3/8", 90 Deg, HSS
Compare
BC870985
KEO 55820 Single End Countersink, 100 deg, 1 in Body, 6 Flutes, Carbide, 1/2 in
Compare
BC870984
KEO 55798 Single End Countersink, 82 deg, 1 in Body, 6 Flutes, Carbide, 1/2 in
Compare
BC855834
Pittsburg Alleghany 2256-176 Three Flute Countersink, 2" x 3/4", 60 Deg, HSS
Compare
BC855807
Allegiance 2262-024 Six Flute Countersink, 3/16" x 3/16", 60 Deg, HSS
Compare
BC855806
Pittsburg Alleghany 2282-048 Six Flute Countersink, 1/2" x 1/4", 60 Deg, HSS
Compare
BC855780
Pittsburg Alleghany 2258-145 Three Flute Countersink, 1-3/4" x 1/2", 90 Deg, HSS
Compare
BC855779
Allegiance 2285-096 Single Flute Countersink, 1" x 1/2", 60 Deg, HSS
Compare
BC855778
Pittsburg Alleghany 2256-064 Three Flute Countersink, 5/8" x 3/8", 60 Deg, HSS
Compare
BC855777
Pittsburg Alleghany 2258-112 Three Flute Countersink, 1-1/4" x 1/2", 90 Deg, HSS
Compare
BC855781
Allegiance 2264-096 Six Flute Countersink, 1" x 1/2", 90 Deg, HSS
Compare
BC855782
Pittsburg Alleghany 2258-161 Three Flute Countersink, 2" x 1/2", 90 Deg, HSS
Compare
BC855785
Allegiance 2264-048 Six Flute Countersink, 1/2" x 1/4", 90 Deg, HSS
Compare
BC855784
Pittsburg Alleghany 2276-064 Four Flute Machine Countersink, 1/2" x 1/2", 60 Deg, HSS
Compare
BC855783
Allegiance 2262-056 Six Flute Countersink, 1/2" x 3/8", 60 Deg, HSS
Compare
BC855776
Keo 2239-060 4 Piece Straight Shank Zero Flute Countersinks and Deburring Tool Set, 90 Deg, M35 Cobalt
Compare
BC855775
Pittsburg Alleghany 2256-040 Three Flute Countersink, 3/8" x 1/4", 60 Deg, HSS
Compare
BC855769
Pittsburg Alleghany 2252-900 5 Piece Single Flute Countersink Set, 90 Deg, HSS
Compare
BC855768
Pittsburg Alleghany 2258-024 Three Flute Countersink, 3/16" x 3/16", 90 Deg, HSS
Compare
BC855767
Keo 2239-011 Straight Shank Zero Flute Countersinks and Deburring Tool, 1/4", 82 Deg, M35 Cobalt
Compare
BC855770
Keo 2239-014 Straight Shank Zero Flute Countersinks and Deburring Tool, 3/8", 82 Deg, M35 Cobalt
Compare
BC855771
Pittsburg Alleghany 2258-036 Three Flute Countersink, 5/16" x 1/4", 90 Deg, HSS
Compare
BC855774
Pittsburg Alleghany 2258-072 Three Flute Countersink, 3/4" x 3/8", 90 Deg, HSS
Compare
BC855773
Keo 2239-056 4 Piece Straight Shank Zero Flute Countersinks and Deburring Tool Set, 4 pcs., 82 Deg, M35 Cobalt
Compare
BC855772
Pittsburg Alleghany 2256-028 Three Flute Countersink, 1/4" x 3/16", 60 Deg, HSS
Compare
BC855786
Pittsburg Alleghany 2276-088 Four Flute Machine Countersink, 7/8" x 1/2", 60 Deg, HSS
Compare
BC855787
Allegiance 2287-032 Single Flute Countersink, 1/4" x 1/4", 90 Deg, HSS
Compare
BC855800
Pittsburg Alleghany 2278-128 Four Flute Machine Countersink, 1-1/2" x 1/2", 90 Deg, HSS
Compare
BC855799
Allegiance 2287-160 Single Flute Countersink, 1-3/4" x 3/4", 90 Deg, HSS
Compare
BC855798
Pittsburg Alleghany 2278-096 Four Flute Machine Countersink, 1" x 1/2", 90 Deg, HSS
Compare
BC855801
Allegiance 2262-160 Six Flute Countersink, 2" x 3/4", 60 Deg, HSS
Compare
BC855802
Pittsburg Alleghany 2282-024 Six Flute Countersink, 3/16" x 3/16", 60 Deg, HSS
Compare
BC855805
Allegiance 2286-024 Single Flute Countersink, 3/16" x 3/16", 82 Deg, HSS
Compare
BC855804
Pittsburg Alleghany 2282-036 Six Flute Countersink, 5/16" x 1/4", 60 Deg, HSS
Compare
BC855803
Allegiance 2264-176 Six Flute Countersink, 2" x 3/4", 90 Deg, HSS
Compare
BC855797
Allegiance 2285-160 Single Flute Countersink, 1-3/4" x 3/4", 60 Deg, HSS
Compare
BC855796
Pittsburg Alleghany 2278-080 Four Flute Machine Countersink, 3/4" x 1/2", 90 Deg, HSS
Compare
BC855790
Pittsburg Alleghany 2277-072 Four Flute Machine Countersink, 5/8" x 1/2", 82 Deg, HSS
Compare
BC855789
Allegiance 2264-028 Six Flute Countersink, 1/4" x 3/16", 90 Deg, HSS
Compare
BC855788
Pittsburg Alleghany 2276-128 Four Flute Machine Countersink, 1-1/2" x 1/2", 60 Deg, HSS
Compare
BC855791
Allegiance 2287-144 Single Flute Countersink, 1-1/2" x 3/4", 90 Deg, HSS
Compare
BC855792
Pittsburg Alleghany 2277-096 Four Flute Machine Countersink, 1" x 1/2", 82 Deg, HSS
Compare
BC855795
Allegiance 2262-128 Six Flute Countersink, 1-1/4" x 3/4", 60 Deg, HSS
Compare
BC855794
Pittsburg Alleghany 2278-064 Four Flute Machine Countersink, 1/2" x 1/2", 90 Deg, HSS
Compare
BC855793
Allegiance 2286-128 Single Flute Countersink, 1-1/4" x 3/4", 82 Deg, HSS
Compare
BC855683
Keo 2239-027 Straight Shank Zero Flute Countersinks and Deburring Tool, 1/2", 90 Deg, M35 Cobalt
Compare
BC855681
Pittsburg Alleghany 2257-088 Three Flute Countersink, 7/8" x 1/2", 82 Deg, HSS
Compare
BC310663
KEO 53149 Single End Countersink, 90 deg, 1/4 in Body, 1 Flute, HSS, 1/4 in
Compare
BC308131
KEO 55017 Single End Countersink, 60 deg, 3 in Body, 6 Flutes, HSS, 1 in
Compare
BC299046
Pittsburg Alleghany 2282-056 Six Flute Countersink, 1/2" x 3/8", 60 Deg, HSS
Compare
BC291507
Pittsburg Alleghany 2257-128 Three Flute Countersink, 1-1/4" x 3/4", 82 Deg, HSS
Compare
BC310664
KEO 53389 Single End Countersink, 90 deg, 3/8 in Body, 1 Flute, HSS, 1/4 in
Compare
BC310665
KEO 53129 Single End Countersink, 90 deg, 1/2 in Body, 1 Flute, HSS, 1/4 in
Compare
BC318879
KEO 51008 Single End Center Reamer, 1 in Dia x 2-3/4 in L, 1/2 in Straight Shank, Spiral Flute
Compare
BC311879
Pittsburg Alleghany 2257-048 Three Flute Countersink, 1/2" x 1/4", 82 Deg, HSS
Compare
BC311222
2263-128 Six Flute Countersink, 1-1/4" x 3/4", 82 Deg, HSS
Compare
BC291077
WIDIA™ METCUT™ 120 Radial Drive Pilot Counterbore, 1-1/2 in Bore, 4 Flutes, HSS
Compare
BC289380
Pittsburg Alleghany 2257-056 Three Flute Countersink, 1/2" x 3/8", 82 Deg, HSS
Compare
BC218924
Pittsburg Alleghany 2256-056 Three Flute Countersink, 1/2" x 3/8", 60 Deg, HSS
Compare
BC212178
2285-032 Single Flute Countersink, 1/4" x 1/4", 60 Deg, HSS
Compare
BC204032
Pittsburg Alleghany 2257-134 Three Flute Countersink, 1-1/2" x 1/2", 82 Deg, HSS
Compare
BC225101
2263-144 Six Flute Countersink, 1-1/2" x 3/4", 82 Deg, HSS
Compare
BC227982
WIDIA™ METCUT™ 263 Straight Shank Port Contour Cutter
Compare
BC258790
Royal 22530 Countersink
Compare
BC251952
Pittsburg Alleghany 2277-080 Four Flute Machine Countersink, 3/4" x 1/2", 82 Deg, HSS
Compare
BC234539
KEO 50582 Single End Center Reamer, 5/8 in Dia x 2-1/4 in L, 3/8 in Straight Shank, Spiral Flute
Compare
BC319062
WIDIA™ METCUT™ 310 Counterbore and Countersink Holder, NO 2, NO 3 Morse Taper Shank
Compare
BC327790
WIDIA™ METCUT™ 110 Stub Taper Pilot Counterbore, 1.5625 in Bore, 6 Flutes, HSS
Compare
BC407274
WIDIA™ METCUT™ 100 Straight Shank Pilot Counterbore, 1-1/2 in Bore, 4 Flutes, HSS
Compare
BC406114
WIDIA™ METCUT™ 163 Straight Shank Port Contour Cutter
Compare
BC404255
KEO 53108-TIN Single End Countersink, 82 deg, 1 in Body, 1 Flute, HSS, 1/2 in
Compare
BC407682
WIDIA™ METCUT™ 303 Counterbore and Countersink Holder, 6 in L, NO 1, 1/2 in Straight Shank
Compare
BC407684
WIDIA™ METCUT™ 400 Long Pin/Radial Drive Counterbore and Countersink Pilot, 13/16 in Head, 1/4 in Shank
Compare
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