Drill America
Drill America 7/8in HSS 1/2 Reduced Shank Silver and Deming Drill Bit with 3-Flatted Shanks
A 7/8 inch high-speed steel Silver and Deming drill bit with a reduced 1/2 inch shank featuring three flats for secure chuck grip
- TypeDrill Accessories
- 7/8 inch drilling capacity from HSS construction
- 1/2 inch reduced shank fits standard chucks
- Three-flatted shank prevents bit slippage
- Silver and Deming design for general-purpose use
7/8 inch HSS Silver and Deming Drill Bit
This 7/8 inch high-speed steel drill bit features a reduced 1/2 inch shank with three flats for secure chuck grip. The silver and deming style suits general-purpose drilling in metal, wood and plastic where a large hole is needed but the drill chuck capacity is limited.
Practical limits of the reduced shank design
The 1/2 inch reduced shank allows use in standard 1/2 inch chucks, yet the narrower neck concentrates torque and can snap if the bit binds or is forced. The 3-flatted shank resists slipping, but the bit is not suited for deep-hole production runs or high-feed CNC cycles where a solid-shank tool would be required.
Highlights
- 7/8 inch drilling capacity from HSS construction
- 1/2 inch reduced shank fits standard chucks
- Three-flatted shank prevents bit slippage
- Silver and Deming design for general-purpose use
Specifications
| Brand | Drill America |
|---|---|
| Type | Drill Accessories |
Questions about this item
Which shank style should I choose for a 1/2" chuck?
The 1/2" reduced shank with three flats fits a standard 1/2" drill chuck and the flats prevent the bit from slipping under load.
What does the .8750 decimal equivalent mean when I start drilling?
It confirms the cutting diameter is exactly 7/8 inch, so the hole you drill will match that size in metal, wood or plastic.
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