Solid Counterbores and Step Drills
Inch Size 3 Flute Capscrew Counterbores |
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High speed steel, for socket cap screws.
3 Flute capscrew counterbores have larger pilots than 2 Flute solid counterbores.
With straight shanks.
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Quantity
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Price
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Model
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Description
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Screw Size |
Pilot Diam. |
Cutter Diam. |
Shank Diam. |
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$9.10 | CBCS-5
| #5 Capscrew Counterbore, 3 Flute, HSS | #5 |
.141" |
.221" |
3/16" |
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$9.10 | CBCS-6
| #6 Capscrew Counterbore, 3 Flute, HSS | #6 |
0.15" |
0.242 |
7/32" |
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$9.10 | CBCS-8
| #8 Capscrew Counterbore, 3 Flute, HSS | #8 |
11/64" |
19/64 |
1/4" |
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$10.30 | CBCS-10
| #10 Capscrew Counterbore, 3 Flute, HSS | #10 |
13/64" |
21/64 |
5/16" |
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$12.05 | CBCS-1/4
| 1/4" Capscrew Counterbore, 3 Flute, HSS | 1/4" |
9/32" |
13/32 |
3/8" |
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$14.15 | CBCS-5/16
| 5/16" Capscrew Counterbore, 3 Flute, HSS | 5/16" |
11/32" |
1/2 |
7/16" |
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$15.60 | CBCS-3/8
| 3/8" Capscrew Counterbore, 3 Flute, HSS | 3/8" |
13/32" |
19/32 |
1/2" |
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$18.65 | CBCS-7/16
| 7/16" Capscrew Counterbore, 3 Flute, HSS | 7/16" |
15/32" |
11/16 |
1/2" |
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$20.40 | CBCS-1/2
| 1/2" Capscrew Counterbore, 3 Flute, HSS | 1/2" |
17/32" |
25/32 |
1/2" |
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$20.40 | CBCS-1/2A
| 1/2" Capscrew Counterbore, 3 Flute, HSS (3/4" Shank) | 1/2" |
17/32" |
25/32 |
3/4" |
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$29.90 | CBCS-5/8
| 5/8" Capscrew Counterbore, 3 Flute, HSS | 5/8" |
21/32" |
31/32 |
3/4" |
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$41.60 | CBCS-3/4
| 3/4" Capscrew Counterbore, 3 Flute, HSS | 3/4" |
13/16" |
1 3/16 |
1" |
Capscrew Counterbores Sets |
High speed steel, for socket cap screws.
Larger pilots than 2-flute solid counterbores. Straight shank
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Quantity
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Price
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Model
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Description
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Sizes |
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$33.50 | CBCS-ST11
| Capscrew Counterbore Set, 3 flutes, #6 - 1/4" | #6, 8, 10, 1/4 |
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$47.50 | CBCS-ST12
| Capscrew Counterbore Set, 3 flutes, 1/4" - 1/2" | 1/4, 5/16, 3/8, 1/2 |
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$77.00 | CBCS-ST13
| Capscrew Counterbore Set, 3 flutes, #6 - 1/2" | #6, 8, 10, 1/4, 5/16, 3/8, 1/2 |
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$63.80 | CBCS-ST21
| Capscrew Counterbore Set, 4 flutes, 3mm-10mm | 3mm,4mm, 5mm, 6mm, 8mm, 10mm |
2 Flute Solid Counterbores |
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2 Flute. High Speed Steel. For socket cap screws
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Quantity
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Price
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Model
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Description
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Pilot/Screw Size |
Cutting Size |
Overall Length |
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$8.25 | CB2-3
| #3 Solid Counterbore, 2 Flute, HSS | .098/#3 |
.176" |
2 1/2" |
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$7.15 | CB2-4
| #4 Solid Counterbore, 2 Flute, HSS | .111/#4 |
0.198 |
2 5/8 |
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$7.75 | CB2-5
| #5 Solid Counterbore, 2 Flute, HSS | .124/#5 |
0.22 |
2 5/8 |
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$8.00 | CB2-6
| #6 Solid Counterbore, 2 Flute, HSS | .137/#6 |
0.241 |
2 5/8 |
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$8.50 | CB2-8
| #8 Solid Counterbore, 2 Flute, HSS | .163/#8 |
0.285 |
2 3/4 |
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$9.15 | CB2-10
| #10 Solid Counterbore, 2 Flute, HSS | .189/#10 |
0.328 |
2 7/8 |
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$10.20 | CB2-12
| #12 Solid Counterbore, 2 Flute, HSS | .215/#12 |
0.372 |
3 |
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$14.70 | CB2-1/4
| 1/4" Solid Counterbore, 2 Flute, HSS | 1/4" |
13/32 |
3 5/8 |
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$15.40 | CB2-5/16
| 5/16" Solid Counterbore, 2 Flute, HSS, with 15/32 CUT | 5/16" |
15/32 |
4 |
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$13.40 | CB2-5/16-A
| 5/16" Solid Counterbore, 2 Flute, HSS, with 31/64 CUT | 5/16" |
31/64 |
4 |
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$17.60 | CB2-3/8
| 3/8" Solid Counterbore, 2 Flute, HSS | 3/8" |
19/32 |
4 3/8 |
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$19.90 | CB2-7/16
| 7/16" Solid Counterbore, 2 Flute, HSS | 7/16" |
21/32 |
4 3/4 |
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$21.60 | CB2-1/2
| 1/2" Solid Counterbore, 2 Flute, HSS | 1/2" |
25/32 |
5 1/8 |
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