- Material: HSS
- Drill Size - Decimal Inch: 1.25in
- Drill Size - Fraction: 1-1/4in
- Flute Length: 3in
- Overall Length: 6in
- Point Angle: 135°
- Flute Type: Parabolic
- Shank Size: 1/2in
- Shank Type: 3-Flat/Reduced
- Surface Treatment: Black Oxide
- Applicable Materials: Metal, Plastic and Wood
- Country of Origin: CN
- Manufacturer Name: Milwaukee Tool
- Point Type: Split
Milwaukee's Thunderbolt® Silver & Deming drill bits are designed for performance in low to high tensile strength materials, stainless steel and cast iron. Thunderbolt® twist drill bits are made from premium industrial-grade steel with heavy-duty cutting surfaces that power through deep or shallow holes with lightning speed. A special flute geometry adds strength while providing increased chip ejection. Thunderbolt® twist drill bits have a heavy duty 135 degree split point for easy penetration and a 1/2 in. reduced shank with 3 milled flats which prevent slippage in a jawed chuck. One per package.
- Item Features
- Thunderbolt® web provides longer life and faster driller times
- Fast, accurate drilling 135 deg split point tip starts on contact to prevent walking
- Reduced slipping - 3-flat Secure-Grip™ shank holds the bit firmly in the drill chuck
- Versatile reduced shank diameter for use in 1/2 in chucks
- Corrosion-resistant - black oxide coating provides lubricity and resists corrosion of the bit