Drill America
Drill America 9/16"-1" 5Pc HSS Reduced Shank Drill Bit Set
Contains five high-speed steel drill bits with reduced shanks for larger holes
- ColorTransparent
- Five large diameters for big-hole drilling
- High-speed steel resists heat and wear
- 1/2" reduced shanks fit standard chucks
- Set covers 9/16" through 1" in five steps
- Brand-new condition, ready for immediate use
9/16"–1" 5-Piece HSS Reduced Shank Drill Bit Set
This five-piece set supplies 9/16", 5/8", 3/4", 7/8" and 1" high-speed steel bits, each with a 1/2" reduced shank. The bits are new and ship in transparent packaging from the manufacturer. They cover the common larger fractional sizes used in metal, wood and plastic drilling.
Suits workshops needing large fractional sizes
The set fits a 1/2" chuck, so it works for users whose drill cannot accept full-size shanks above 1/2". Buyers who need smaller diameters, metric sizes or a wider range of bits should look at other collections.
Five bits with 1/2" reduced shanks
The defining specification is the 1/2" reduced shank on every bit, allowing the large cutting diameters to be used in standard 1/2" drill chucks. This shank size decides whether the set matches your drill's capacity.
Highlights
- Five large diameters for big-hole drilling
- High-speed steel resists heat and wear
- 1/2" reduced shanks fit standard chucks
- Set covers 9/16" through 1" in five steps
- Brand-new condition, ready for immediate use
Specifications
| Brand | DRILL AMERICA |
|---|---|
| Color | Transparent |
Questions about this item
How do I install the 1/2" reduced shank bits into my drill chuck, and what step do people get wrong?
Open the chuck fully, insert the 1/2" shank until it seats against the jaws, then tighten securely; the common error is not opening the chuck wide enough so the reduced shank slips.
What maintenance or replacement will the HSS bits need after repeated drilling?
The high-speed steel cutting edges dull with use; resharpen on a bench grinder or replace individual bits when they no longer cut cleanly.
What limit appears first when drilling larger diameters like the 1" bit under sustained pressure?
The 1/2" reduced shank transmits less torque than a full-size shank, so the drill motor or chuck often stalls before the bit itself fails.
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