514-336-3820
514-745-1764
Solid carbide construction (steel shanks on tools 3/8" diameter and larger) makes this countersink ideal for hardened steel, high temperature alloys and other tough jobs.
- Rigid set-ups and good machine tool maintenance are a must
- Not recommended for hand-held applications
| 60° Part # |
82° Part # |
90° |
100° Part # |
120° Part # |
Body Diameter |
Shank Diameter |
Overall Length |
| 78012501 | 78012502 | 78012503 | 78012504 | 78012506 | 1/8 | 1/8 | 1-1/2 |
| 78018701 | 78018702 | 78018703 | 78018704 | 78018706 | 3/16 | 3/16 | 1-1/2 |
| 78025001 | 78025002 | 78025003 | 78025004 | 78025006 | 1/4 | 1/4 | 2 |
| 78037501 | 78037502 | 78037503 | 78037504 | 78037506 | 3/8 | 1/4 | 2 |
| 78050001 | 78050002 | 78050003 | 78050004 | 78050006 | 1/2 | 3/8 | 2-1/8 |
| 78062501 | 78062502 | 78062503 | 78062504 | 78062506 | 5/8 | 3/8 | 2-3/8 |
| 78075001 | 78075002 | 78075003 | 78075004 | 78075006 | 3/4 | 1/2 | 2-3/4 |
| 78100001 | 78100002 | 78100003 | 78100004 | 78100006 | 1 | 1/2 | 2-3/4 |
| 78125001 | 78125002 | 78125003 | 1-1/4 | 1/2* | 3 | ||
| 78150001 | 78150002 | 78150003 | 1-1/2 | 3/4* | 3-1/2 |
* Straight shank with tang drive
These standard six flute countersinks are designed for economical, general purpose countersinking, chamfering or deburring. Because of the multiple flute design, chip loads are generally smaller and even at maximum speeds, chatter-free machining is possible.
- Steam homo surface treatment (blackening) to prolong tool life and prevent galling
| 60° Part # |
82° Part # |
90° |
100° Part # |
110° Part # |
120° Part # |
Body Diameter |
Shank Diameter |
Overall Length |
| 79012501 | 79012502 | 79012503 | 79012504 | 79012505 | 79012506 | 1/8 | 1/8 | 1-1/2 |
| 79018701 | 79018702 | 79018703 | 79018704 | 79018705 | 79018706 | 3/16 | 3/16 | 1-1/2 |
| 79025001 | 79025002 | 79025003 | 79025004 | 79025005 | 79025006 | 1/4 | 1/4 | 2 |
| 79031201 | 79031202 | 79031203 | 79031204 | 79031205 | 79031206 | 5/16 | 1/4 | 2 |
| 79037501 | 79037502 | 79037503 | 79037504 | 79037505 | 79037506 | 3/8 | 1/4 | 2 |
| 79050001 | 79050002 | 79050003 | 79050004 | 79050005 | 79050006 | 1/2 | 3/8 | 2 |
| 79062501 | 79062502 | 79062503 | 79062504 | 79062505 | 79062506 | 5/8 | 3/8 | 2-1/4 |
| 79075001 | 79075002 | 79075003 | 79075004 | 79075005 | 79075006 | 3/4 | 1/2 | 2-3/4 |
| 79087501 | 79087502 | 79087503 | 79087504 | 79087505 | 79087506 | 7/8 | 1/2 | 2-3/4 |
| 79100001 | 79100002 | 79100003 | 79100004 | 79100005 | 79100006 | 1 | 1/2 | 2-3/4 |
| 79125001 | 79125002 | 79125003 | 79125004 | 79125005 | 79125006 | 1-1/4 | 1/2* | 3 |
| 79150001 | 79150002 | 79150003 | 79150004 | 79150005 | 79150006 | 1-1/2 | 3/4* | 3-1/2 |
| 79200001 | 79200002 | 79200003 | 79200004 | 79200005 | 79200006 | 2 | 3/4* | 3-3/4 |
| 79250001 | 79250002 | 79250003 | 2-1/2 | 3/4* | 5 | |||
| 79300001 | 79300002 | 79300003 | 3 | 3/4* | 5-1/4 |
* Straight shank with tang drive
This set of seven Series 79 countersinks include 1/4",5/16", 3/8", 1/2", 5/8", 3/4" and 1" diameter tools. Sets are available with 60°, 82°, 90° or 100° included angles. Tools are packaged in plastic cases
| Part # | Included Angle |
| 79000001 | 60° |
| 79000002 | 82° |
| 79000003 | 90° |
| 79000004 | 100° |
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Due to the fact that we are continuously improving our products, the descriptions, illustrations,
specifications,dimensions, and part numbers are subject to change without notice.
Every effort has been made to have the information on this site error free, we can not be responsible for errors and or omissions.
Airtek (1990) Ltée, 5750 Donahue St., Montreal, Qc, Canada, H4S 1C1
Tel: 514-336-3820