Drill America
Drill America DWDST1-9/16 1-9/16 inch HSS stub drill bit
HSS stub drill bit with 135-degree split point for self-centering, reduced-thrust drilling in tight spaces
- Self-centering 135° split point reduces thrust
- Manufactured to NAS 907 aerospace standard
- Short rugged construction suits limited spindle clearance
- Broad material range for automotive and construction use
- 118° standard point on sizes below 1/16 and #52
1-9/16 inch HSS stub drill bit
This Drill America bit is a screw-machine stub drill made to National Aerospace Standard 907. The short, rugged construction suits portable or machine drilling where spindle clearance is limited. It targets automotive and construction professionals who need a self-centering point in a compact length.
Check shank fit and material suitability
Verify that your drill chuck or collet accepts a 1-9/16 inch shank before ordering. The 135 degree split point reduces thrust and centres itself in steel, aluminium and similar metals. Sizes below 1/16 inch or #52 use a 118 degree standard point instead, so confirm the point geometry matches your application.
Proposition 65 warning included
The package carries a California Proposition 65 notice for chemicals linked to cancer and reproductive harm. No additional accessories, coatings or software are bundled with this single bit. The only change versus a bare bit is the regulatory label required for sale in California.
Highlights
- Self-centering 135° split point reduces thrust
- Manufactured to NAS 907 aerospace standard
- Short rugged construction suits limited spindle clearance
- Broad material range for automotive and construction use
- 118° standard point on sizes below 1/16 and #52
Specifications
| Brand | DRILL AMERICA |
|---|
Questions about this item
Does the 1-9/16 inch HSS stub drill bit come alone or in a set, and do I need to buy a chuck or adapter separately?
The listing covers a single 1-9/16 inch HSS stub drill bit manufactured to NAS 907. No chuck, adapter, case or additional bits are included; the bit fits a standard drill chuck that accepts its shank diameter.
When should I choose the 135 degree split-point version versus the 118 degree standard-point version for this diameter?
For a 1-9/16 inch bit the supplied geometry is the 135 degree split point, which is self-centering and reduces thrust. The 118 degree standard point applies only to sizes smaller than 1/16 inch and #52, so it is not an option at this diameter.
How does the 135 degree split point and NAS 907 short length affect drilling performance in a handheld drill?
The 135 degree split point centres itself without a pilot hole and lowers feed pressure, while the NAS 907 stub length keeps the bit rigid and short enough for tight spindle clearance in portable or machine drilling across a broad range of materials.
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