Description
Walter 01M558 29/32 SST Prentice Drill is a heavy-duty, large-diameter drill bit designed for professional use in portable drills, drill presses, and magnetic base drills with 1/2″ chuck capacity. Built with Walter’s SST+ cobalt technology, this drill bit delivers maximum strength, faster drilling speeds, and longer life under demanding conditions. Its 135° self-centering split point minimizes thrust requirements and prevents walking, while the special bronze SST surface treatment enhances lubricity for cooler, cleaner cutting. Featuring a 1/2″ reduced shank with 3-flats for improved grip, it provides stable performance and reliable drilling in tough materials.
Features:
- Premium cobalt HSS construction for drilling harder materials with ease.
- 135° self-centering split point for improved accuracy and reduced thrust.
- Special bronze SST surface treatment enhances lubricity and extends tool life.
- 1/2″ reduced shank allows use in standard drill chucks.
- 3-flats shank design eliminates slippage in handheld drills.
- Engineered for fast, precise, and long-lasting drilling performance.
Benefits:
- Drills up to 30% faster than standard HSS bits.
- Provides more holes per sharpening for reduced downtime.
- Produces clean, accurate holes with minimal burrs.
- Compatible with a wide range of portable drills and drill presses.
Technical Specifications:
- Model: 01M558
- Type: 29/32 SST Prentice Drill Bit
- Point Angle: 135° self-centering split point
- Shank: 1/2″ reduced shank with 3-flats
- Material: Premium cobalt HSS alloy
- Application: Portable drills, drill presses, and magnetic base drills






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