
Rocky Mountain Twist 3G-OTH-192831 — Technical Specifications
The ROCKY MOUNTAIN TWIST Threaded Shank Drill Bit: #21 is a high-speed steel threaded-shank drill bit with a black oxide finish. It features a 0.1590-inch diameter, a 1/4"-28 thread size, and a 2-1/8" overall length, meeting NAS 965 Type B specifications (MPN 953HS21LS).
Technical Specifications
| Parameter | Value |
|---|---|
| Type | Black Oxide HSS |
| Overall Lg | 2-1/8" |
| Manufacturer Part Number | 953HS21LS |
