Walter Surface Technologies
Walter Surface Technologies 01M533 Prentice Drill Bit 33/64" 135deg
Heavy-duty 33/64 inch cobalt drill bit with 135 degree point drills mild steel, stainless steel and non-ferrous metal without pre-drilling
- TypeElectric Drills
- Drills more holes faster with cobalt-blend construction
- Extra-hard tips extend intervals between re-sharpenings
- Exclusive point geometry eliminates pre-drilling step
- Three flats on shank prevent chuck slippage
- Special bronze SST treatment adds wear resistance
Walter 01M533 Prentice Drill Bit
The Walter 01M533 Prentice drill bit is a heavy-duty large-diameter tool built for portable drills, drill presses and magnetic-base drills with a ½” chuck. Its cobalt blend construction and extra-hard tips extend the interval between re-sharpenings. The 135-degree point geometry removes the need for a separate pilot hole in most materials.
Installation and common issues
The bit fits any ½” chuck and the three flats on the shank prevent slippage during high-torque drilling. No special adapters or pilot holes are required thanks to the exclusive point design. The main limitation is the shank size: machines with smaller chucks cannot accept this bit.
Capacity and headroom
The 33/64” diameter, 3-1/8” flute length and 6” overall length suit through-holes in mild steel, non-ferrous metals and stainless steel. The bronze SST treatment and cobalt blend allow faster cutting and longer life in these materials. Very thick workpieces beyond the flute length or harder alloys not listed will exceed the bit’s practical range.
Highlights
- Drills more holes faster with cobalt-blend construction
- Extra-hard tips extend intervals between re-sharpenings
- Exclusive point geometry eliminates pre-drilling step
- Three flats on shank prevent chuck slippage
- Special bronze SST treatment adds wear resistance
Specifications
| Brand | WALTER SURFACE TECHNOLOGIES |
|---|---|
| Type | Electric Drills |
Questions about this item
How do I confirm the bit is cutting correctly after setup?
The bit should enter mild steel, non-ferrous metal or stainless steel without a pilot hole and produce clean chips while the three shank flats keep it from slipping in the ½” chuck.
What comes in the box and what must I supply?
The package contains the single 33/64" cobalt-blend drill bit with 135° point, 3-1/8" flute and 6" overall length; you must provide a portable drill, drill press or magnetic-base drill with a ½” chuck.
Which diameter should I choose for a 33/64" hole?
This model is the 33/64" size, so select it when that exact diameter is required; other diameters are separate SKUs.
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