SILVER & DEMING Cobalt Twist Drill Bit
- Industrial Quality for professionals. Packaged in a paper box for distributors and resellers
- Perfect for drilling hard metal such as stainless steel, wood, and plastic
- Heat-treated M35 COBALT steel material for extended bit life and optimal cutting performance. Drills faster and lasts longer than the black & gold bits.
- 1/2″ shank with 3 Flats allows for the drill bit to fit onto 1/2″ drill chucks
- 135 Degree split point tips prevents “wobbling” by providing instant starts and eliminating the need for a pilot hole
- Precision grounded from solid one piece design for exact specifications to ensure accurate holes
- Spiral flutes allow for instant, effortless chip and debris removal
| Part Number | Cutting Diameter | Overall Length | FLUTE Length |
|---|---|---|---|
| 58-5017 | 17/32″ | 6″ | 3-3/4″ |
| 58-5018 | 9/16″ | 6″ | 3-3/4″ |
| 58-5019 | 19/32″ | 6″ | 3-3/4″ |
| 58-5020 | 5/8″ | 6″ | 3-3/4″ |
| 58-5021 | 21/32″ | 6″ | 3-3/4″ |
| 58-5022 | 11/16″ | 6″ | 3-3/4″ |
| 58-5023 | 23/32″ | 6″ | 3-3/4″ |
| 58-5024 | 3/4″ | 6″ | 3-3/4″ |
| 58-5025 | 25/32″ | 6″ | 3-3/4″ |
| 58-5026 | 13/16″ | 6″ | 3-3/4″ |
| 58-5027 | 27/32″ | 6″ | 3-3/4″ |
| 58-5028 | 7/8″ | 6″ | 3-3/4″ |
| 58-5029 | 29/32″ | 6″ | 3-3/4″ |
| 58-5030 | 15/16″ | 6″ | 3-3/4″ |
| 58-5031 | 31/32″ | 6″ | 3-3/4″ |
| 58-5032 | 1″ | 6″ | 3-3/4″ |
| 58-5034 | 1-1/16″ | 6″ | 3-3/4″ |
| 58-5036 | 1-1/8″ | 6″ | 3-3/4″ |
| 58-5038 | 1-3/16″ | 6″ | 3-3/4″ |
| 58-5040 | 1-1/4″ | 6″ | 3-3/4″ |
| 58-5042 | 1-5/16″ | 6″ | 3-3/4″ |
| 58-5044 | 1-3/8″ | 6″ | 3-3/4″ |
| 58-5046 | 1-7/16″ | 6″ | 3-3/4″ |
| 58-5048 | 1-1/2″ | 6″ | 3-3/4″ |
Silver & Deming Cobalt Twist drill bit is ideal for heavy duty drilling into wood and metal for hole sizes larger than 1/2″. First, these twist drill bits feature a 1/2″ shank with 3 flats to fit onto 1/2″ drill chucks. Second, our silver & deming drill bit contains a 135 degree split point tip to eliminate wobbling and ensure self-centering for increased drilling precision. Moreover, these twist drill bits contain COBALT steel for extended bit life and optimal cutting performance that is better than that of high speed steel.