This type of drill bit is used for drilling through wood, sheetrock or metal. When drilling holes larger than ¼” through metal you should always drill a pilot hole with a 1/8” drill bit before using the larger bit, this will make drilling the hole much easier. Always be sure that you know what is behind the material that you are drilling through so.
Features
- Cobalt drill bits offer the best heat resistance and rigid thick web design for drilling in extremely hard and abrasive materials such as treated stainless steel (precipitation-hardened), cast iron and titanium
- 135° split point starts on contact with no walking or skating and no center punch is required
- A tough cobalt alloy delivers heat resistance up to 1100° Fahrenheit allowing the bit to perform for extended periods of time in the most abrasive materials without failing due to the high heat levels
- Overall bit hardness of 66-68 HRC from the cobalt formulation gives the ability to penetrate exceptionally tough materials
Specifications
Size: 1/4"
Length: 4"
