The Premium Electrician's 3/8-Inch Hex Step Bit Set contains 3 step bits sized 7/8-Inch, 1-1/8-Inch, and 1-3/8-Inch for creating hole cutouts in panels and j-boxes to accommodate most commonly used 1/2-Inch, 3/4-Inch, and 1-Inch conduit. Dual straight flutes help pull the step bit through the material for clean cuts. The aluminum titanium nitride coating is 10 times more durable than steamed black oxide for longer bit life. The durable 3/8-Inch hex shank provides a firm, positive grip. The compact, modular case comes with cutting oil and is designed to nest neatly within MODbox™ toolboxes and on the MODbox™ Case Adapter Side Rail Attachment.WarningsAlways ensure that you and persons in the vicinity wear approved eye protection.Features Aluminum Titanium Nitride Coating; Dual Straight Fluting; Cutting Oil Included; Modular Case Double, straight flute removes chips for clean cuts and drilling Laser markings are easy to read for quick size identification Durable, 3/8-Inch hex shank provides a firm, positive grip and won't spin out in the drill The compact, modular case comes with cutting oil and is designed to nest neatly within MODbox™ toolboxes and on the MODbox™ Case Adapter Side Rail Attachment For use on steel (up to 16 gauge), wood, plastic, and aluminum Step bits are coated with aluminum titanium nitride and are 10 times more durable than steamed black oxide coating for longer bit life Fast-starting, non-walking drill tip NoteRead and follow safety instructions in power tool owner's manual. Shank Size: 3/8 in Hex Size: 3/16 in to 1-3/8 in (4.8 to 34.9 mm) Flute Type: Dual Straight Flutes Material Compatibility: Steel (up to 16 gauge), Wood, Plastic, Aluminum Tip Type: Fast-starting, non-walking drill tip Material: High Speed Steel Coating: Aluminum Titanium Nitride (AlTiN) Weight: 1.29 lbs Overall Height: 3.2 to 3.6 in (8.1 to 9.4 cm) Overall Length: 0.88 to 1.8 in (2.2 to 4.6 cm) Overall Width: 0.88 to 1.8 in (2.2 to 4.6 cm) Width: 3.72 in Height: 1.8 in Depth: 9.25 in Number of Holes: 12, 2, 3 Country of Origin: China DownloadsSpec SheetSafety Data Sheet