This is the OEM replacement drill for Snappy's 9/64" x 1/2" TCT countersink (part 46309). It's a TiN-coated HSS twist drill with parabolic flutes, a design that clears chips faster and resists heat buildup better than a standard-flute bit, matching the drill originally fitted to this countersink so performance stays consistent after replacement.
- TiN (titanium nitride) coated HSS twist drill
- Parabolic flute design for faster chip clearing and better heat resistance
- OEM replacement for Snappy part 46309 -- the 9/64" x 1/2" TCT Countersink
- Sold individually as a single replacement drill
Loosen the countersink's set screw, swap in this drill, align the flat with the set screw, and re-tighten to bring a worn 46309 countersink back to full sharpness.