HSS & Cobalt Chatterless Countersink Sets
- Use with portable drills and drill presses on ferrous and non-ferrous materials
- Complete with wooden storage block
HSS - High Speed Steel
- Provides good wear resistance in mild steel and nonferrous materials
| HSS - High Speed Steel | |||
| Part Number | Degree | Number of Pieces | Size Range |
| 70-757-0 | 60° | 8 | 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8, 1" |
| 70-760-4 | 82° | 8 | |
| 70-763-8 | 90° | 8 | |
| 70-758-8 | 60° | 10 | 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/4, 1-1/2" |
| 70-761-2 | 82° | 10 | |
| 70-764-6 | 90° | 10 | |
| 70-759-6 | 60° | 10 | 3/16, 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/4" |
| 70-762-0 | 82° | 10 | |
| 70-765-3 | 90° | 10 | |
M-42 Cobalt
- Provides better wear resistance in harness and toughness compared to HSS.
- Use in high-tensile alloys, titanium, cast iron, Inconel and high nickel stainless steel.
| M-42 Cobalt | |||
| Part Number | Degree | Number of Pieces | Size Range |
| 70-766-1 | 60° | 8 | 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8, 1" |
| 70-768-7 | 82° | 8 | |
| 70-770-3 | 90° | 8 | |
| 70-767-9 | 60° | 10 | 3/16, 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/4" |
| 70-769-5 | 82° | 10 | |
| 70-771-1 | 90° | 10 | |
