Walter Surface Technologies
Walter Surface Technologies 01M555 Prentice Drill Bit 55/64in 135deg 3-1/8in Flute 6in Overall
Heavy-duty cobalt drill bit with 135-degree point, three-flat shank and bronze SST finish drills mild steel, non-ferrous and stainless steel
- TypeElectric Drills
- Drills 55/64in holes in steel with 135deg point
- Three shank flats stop chuck slippage during heavy drilling
- Cobalt blend tips stay sharp for more holes between sharpenings
- Bronze SST finish cuts friction for faster drilling speed
- 6in overall length reaches deep workpieces in drill presses
Walter SST+ ½” Prentice Drill Bit
This Walter SST+ ½” Prentice drill bit is a heavy-duty large-diameter bit built for portable drills, drill presses and magnetic base drills with a ½” chuck. The cobalt blend and extra-hard tip material extend the interval between re-sharpenings.
Suited for steel and non-ferrous metal drilling
It handles mild steel, non-ferrous metal and stainless steel. The 135-degree point geometry removes the need for a pilot hole and three flats on the shank stop slippage in the chuck. Buyers who need smaller diameters or bits for wood and masonry should choose a different style.
55/64 inch diameter with 3-1/8 inch flute
The cutting diameter is 55/64 inch, the flute length is 3-1/8 inch and the overall length is 6 inch. The 135-degree point angle and bronze SST treatment support faster drilling in the listed metals.
Highlights
- Drills 55/64in holes in steel with 135deg point
- Three shank flats stop chuck slippage during heavy drilling
- Cobalt blend tips stay sharp for more holes between sharpenings
- Bronze SST finish cuts friction for faster drilling speed
- 6in overall length reaches deep workpieces in drill presses
Specifications
| Brand | WALTER SURFACE TECHNOLOGIES |
|---|---|
| Type | Electric Drills |
Questions about this item
What comes in the box with the 01M555 Prentice drill bit?
The package contains the single 55/64 inch drill bit with 135 degree point, 3-1/8 inch flute and 6 inch overall length.
Which chuck size matches this 01M555 bit?
The 1/2 inch shank with three flats fits any drill or magnetic-base unit that accepts a 1/2 inch chuck.
How deep can I drill in stainless steel with the 55/64 inch diameter?
The 3-1/8 inch flute length sets the maximum clean hole depth in mild steel, non-ferrous metal and stainless steel.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.



