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Adjustable Counterbore, Style 5A

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Adjustable Counterbore, Style # 5A - Counterboring Flat Bottom Holes - Southeast Tool

Drill is held in place with two opposing set screws.

Carbon Steel. 

Please note that center drills are not included in the sale of counterbores.

Counterbore DiameterCenter Drill Hole DiameterOverall LengthPart #
3/8" 3/16" 1 1/2" SE15301
7/16" 3/16" 1 1/2" SE153001
7/16" 7/32" 1 1/2" SE153002
1/2" 3/16" 1 1/2" SE15302
1/2" 7/32" 1 1/2" SE15303
1/2" 1/4" 1 1/2" SE15304
5/8" 1/4" 1 1/2" SE15305
5/8" 5/16" 1 1/2" SE15306
3/4" 1/4" 2" SE15307
3/4" 5/16" 2" SE15308
7/8" 1/4" 2" SE15309
7/8" 5/16" 2" SE15310
7/8" 3/8" 2" SE15311
7/8" 7/16" 2" SE15312
1" 1/4" 2" SE15313
1" 5/16" 2" SE15314
1" 3/8" 2" SE15315
1" 7/16" 2" SE15316
1" 1/2" 2" SE15317
1 1/8" *5/16" x 1/2" 2" SE15318
1 1/8" *3/8" x 1/2" 2" SE15319
1 1/8" 7/16" 2" SE15320
1 1/8" 1/2" 2" SE15321
1 1/4" *5/16" x 1/2" 2" SE15322
1 1/4" *3/8" x 1/2" 2" SE15323
1 1/4" 7/16" 2" SE15324
1 1/4" 1/2" 2" SE15325
1 3/8" *3/8" x 1/2" 2" SE15326
1 3/8" 1/2" 2" SE15328
1 1/2" *3/8" x 1/2" 2" SE15329
1 1/2" *7/16" x 1/2" 2" SE15330
1 1/2" 1/2" 2" SE15331
1 1/2" 9/16" 2" SE15332
1 1/2" 5/8" 2" SE15333
1 5/8" 1/2" 2" SE15334
1 3/4" 1/2" 2" SE15335

*Indicates a stepped hole diameter allowing the tool to be clamped to a 1/2˝ shank drill.

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