Walter Surface Technologies
Walter Surface Technologies 01M556 Prentice Drill 135deg 7/8
Heavy-duty cobalt drill bit with 135-degree point drills mild steel, stainless and non-ferrous metals without pre-drilling
- TypeElectric Drills
- Heavy-duty drilling in portable drills and presses with ½" chuck
- Extra-hard cobalt blend tips extend life between re-sharpenings
- 135° point geometry removes need for pre-drilling
- Three flats on shank prevent slippage inside chuck
- Cuts mild steel, non-ferrous metal and stainless steel
7/8" Prentice Drill Bit
This Walter Surface Technologies 01M556 Prentice Drill is a heavy-duty large diameter bit with a 135-degree point. It fits portable drills, drill presses and magnetic base drills with a half-inch chuck capacity. The cobalt blend construction and extra hard tips extend service life between re-sharpenings.
Suitable for steel and non-ferrous metal
The bit drills mild steel, stainless steel and non-ferrous metals without a separate pilot hole. Three flats on the shank prevent slippage inside the chuck. Builders who need smaller diameters or a different shank size should look at other options.
7/8" diameter with 3-1/8" flute length
The 7/8-inch cutting diameter and 3-1/8-inch flute length determine the maximum hole size and depth in a single pass. Overall length is six inches. Match these dimensions to your application before purchase.
Highlights
- Heavy-duty drilling in portable drills and presses with ½" chuck
- Extra-hard cobalt blend tips extend life between re-sharpenings
- 135° point geometry removes need for pre-drilling
- Three flats on shank prevent slippage inside chuck
- Cuts mild steel, non-ferrous metal and stainless steel
Specifications
| Brand | WALTER SURFACE TECHNOLOGIES |
|---|---|
| Type | Electric Drills |
Questions about this item
Will the 7/8 inch diameter bit fit my 1/2 inch chuck drill press?
The bit has a 1/2 inch shank with three flats that prevent slippage inside a 1/2 inch chuck, so it fits portable drills, drill presses and magnetic base drills with that capacity.
How do I know the 135 degree point is cutting correctly on stainless steel?
The exclusive point geometry eliminates the need for pre-drilling; you should see clean, fast chip removal and accurate hole starts on mild steel, non-ferrous metal and stainless steel.
Does the box include any lubricant or only the 6 inch overall length drill bit?
The package contains the single Walter SST+ Prentice drill bit with cobalt blend construction and bronze SST treatment; cutting fluid or lubricant must be purchased separately.
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