Description
Walter 01M561 61/64 SST Prentice Drill is a heavy-duty large diameter drill bit engineered for portable drills, drill presses, and magnetic base drills with 1/2″ chuck capacity. Built with a cobalt blend for exceptional hardness and heat resistance, this bit delivers longer life and allows you to drill more holes between re-sharpenings. Its design ensures reliable performance in demanding metalworking applications.
Features:
- Premium cobalt HSS construction for drilling harder materials.
- 135° self-centering split point reduces thrust and prevents walking.
- Bronze SST surface treatment provides extreme lubricity and extended tool life.
- 1/2″ reduced shank design for use in standard chucks.
- 3-flats shank minimizes slippage in drill chucks.
Benefits:
- Drills up to 30% faster than standard HSS drill bits.
- Extended durability reduces replacement frequency.
- Improved accuracy and control in heavy-duty applications.
- Optimized design prevents walking for cleaner holes.
- Compatible with a wide range of drilling equipment.
Technical Specifications:
- Model: 01M561
- Type: SST Prentice Drill Bit
- Size: 61/64″
- Shank: 1/2″ reduced shank with 3-flats
- Material: Premium cobalt blend HSS
- Point Angle: 135° self-centering split point
- Surface Treatment: Bronze SST
- Applications: Portable drills, drill presses, magnetic base drills






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