- 135-Degree Split Point Tip for reduced bit walking
- Left-Hand Turn for drilling out fasteners without tightening down the fastener
- M-42 Cobalt Construction for Durability in abrasive materials
- Straight shank works in both keyed and key-less drill chucks
![Irwin Left-Hand Mechanics Length Cobalt High Speed Steel Drill Bits, 7/16", Split, #IR-30528 (6/Pkg) Irwin Left-Hand Mechanics Length Cobalt High Speed Steel Drill Bits, 7/16", Split, #IR-30528 (6/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/259095/456824/Untitled_design_-_2023-02-13T163617.229__42564.1676327787.jpg?c=2)