• Hot Isostatically Pressed to Extend Life and Resist Breakage
• Copper Braze Material Gives High Heat Resistance for Reduced Tip Loss
• All Tips Made to ANSI Specifications
• Double-Ground, Extra-Deep Flute for Faster Debris Removal, Increased Speed and Longer Bit Life
• Manufactured with a Chrome Vanadium Spring Steel Shaft for Superior Durability and Long Life""
• Masonry Drill Bit • Type Percussion Rotary • Drill Size 5/16 Inch • Overall Length 4-3/4 Inch • Flute Type Twist • Flute Length 2-1/2 Inch • Shank Type Straight • Material Copper Braze • Process Hardened • Hardness 50 to 53 HRC • Shaft Material Chrome Vanadium Spring Steel