Broad compatibility for fast setup: Designed to fit a range of grub screw boring bars
and hobbyists who require consistent hole sizing
Type: Stub reamer for stable
The JBO Thread Ring Gauge (GO) for UNC Left-Hand threads (1/2 x 13) is a precision Go gauge designed to quickly verify external thread diameters against the 2A tolerance
Its left-hand orientation is ideal for left-handed spindles and supports a range of tool diameters
OSG Stub Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDS-3.83mm Tiny Tool Holders Broad compatibility for fast setup:Meet the OSG Stub Drill HSS E, a high performance drill bit designed for stainless steels, versatile steels, and aluminum. Crafted with High Speed Steel E, it blends durability with precise cutting to deliver clean, accurate holes quickly and reliably. Featuring a 3. 83 mm diameter and a compact stub design, this drill bit is built for professional workshops, maintenance tasks, and serious hobby projects where repeatable hole quality matters across