Definition

Noun: A type of drill bit characterized by having one or more sharp, flat cutting edges. These cutting edges are typically made from or treated with materials that make them very hard and resistant to wear, allowing them to cut into hard substances like rock or metal.

Usage

A "blade bit" is a tool used in drilling operations. It is specifically designed for cutting or boring holes. The term is most commonly used in contexts involving machining, mining, construction, or oil drilling.

Examples

• The geologist selected a blade bit for the core sampling drill.
• For drilling through this soft rock formation, a simple blade bit will be sufficient.
• The machinist sharpened the worn cutting edges of the blade bit.

Advanced Usage

• Technical Specification: In technical manuals, "blade bit" may be specified by its material (e.g., tungsten carbide blade bit) or its design (e.g., single-blade bit, multi-blade bit).
• Historical Context: Early drilling and mining operations often relied on simple, forged steel blade bits before the development of more complex drill head designs.

Variants and Related Words

• Drag Bit: A broader category of drill bits that includes blade bits. Drag bits cut using a dragging or scraping action with fixed blades.
• Drill Bit: The general term for any cutting tool used to create cylindrical holes.
• Coring Bit: A type of bit designed to remove a cylinder of material (a core) rather than grinding it all to fragments; some coring bits use blade-like cutters.

Synonyms

• Drag bit
• Flat bit (in some woodworking contexts)
• Spade bit (a specific type of blade bit for wood, with a flat, spade-like shape)

Related Phrases

• Blade bit design: Refers to the engineering and geometry of the cutting edges.
• Blade bit wear: The gradual deterioration of the cutting edges during use, a key factor in bit performance and replacement scheduling.

Noun

1. a drilling bit with cutting edges usually hardened against wear