Walter Surface Technologies
Walter Surface Technologies 01M535 Prentice Drill 35/64" 135deg 3-1/8" 6
Heavy-duty cobalt drill bit with 135-degree point for mild steel, stainless steel and non-ferrous metals
- TypeElectric Drills
- Drills large holes fast with 35/64" diameter
- Cobalt blend extends bit life between sharpenings
- 135° split point starts holes without pre-drilling
- Three flats on shank prevent chuck slippage
- 6" overall length reaches deep workpieces
Walter SST+ Prentice Drill Bit
The Walter SST+ Prentice is a heavy-duty large-diameter drill bit built for portable drills, drill presses and magnetic-base drills with a half-inch chuck. It targets metalworkers who need a single bit that cuts 35/64" holes in mild steel, non-ferrous metal and stainless steel without a pilot hole.
35/64" Diameter and 3-1/8" Flute
The 35/64" cutting diameter and 3-1/8" flute length give enough reach for typical plate and structural work while the 6" overall length keeps the bit manageable in a handheld drill. The cobalt blend and extra-hard tip extend the number of holes between re-sharpenings, but the half-inch shank limits use to chucks of that capacity or larger.
Three-Flat Shank and SST Treatment
Three flats on the shank prevent slippage inside the chuck during high-torque drilling. The special bronze SST surface treatment reduces friction and heat build-up, helping the bit run cooler and quieter through stainless and mild steel. Power draw follows the drill motor used; the bit itself adds no electrical load.
Highlights
- Drills large holes fast with 35/64" diameter
- Cobalt blend extends bit life between sharpenings
- 135° split point starts holes without pre-drilling
- Three flats on shank prevent chuck slippage
- 6" overall length reaches deep workpieces
Specifications
| Brand | WALTER SURFACE TECHNOLOGIES |
|---|---|
| Type | Electric Drills |
Questions about this item
Will the 35/64" Prentice drill fit the 1/2" chuck on my older portable drill?
Yes — the shank is sized for 1/2" chuck capacity and the three flats prevent slippage in any standard chuck.
How can I confirm the 135-degree point is cutting correctly after I start drilling?
The exclusive point geometry should start on contact without a centre punch and produce clean chips in mild steel, stainless or non-ferrous metal.
Does the 6" overall-length bit come alone or in a set with other sizes?
The supplier description lists a single 35/64" x 3-1/8" flute x 6" overall bit; no additional bits or accessories are mentioned.
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