OSG Jobber Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDR-3.87mm M&D 4-40 threading capability for small-diameter

4-40 threading capability for small-diameter

you can quickly determine whether a threaded hole meets specification

ensuring repeatable bore diameters that meet common engineering tolerances

Operational criterion: The GO gauge must screw into the thread-cut portion of a part by hand without excessive force

Taper shank design for secure seating and repeatable accuracy: The taper shank ensures a stable fit in compatible tool holders

OSG Jobber Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDR-3.87mm M&D 4-40 threading capability for small-diameterThe OSG Jobber Drill HSS E is a high quality drill bit designed for serious metalworking. Crafted from HSS E, it delivers reliable performance across a range of materialsfrom tough stainless steels to general steels and lightweight aluminum. With a diameter of 3. 87 mm, this jobber drill is built for precise, repeatable holes in both professional shops and DIY setups. Its advanced cutting geometry promotes clean, accurate holes and minimizes finishing