Westward 19N141 pneumatic accessory

Step drill bit for sheet metal

This Westward 19N141 step drill bit creates multiple hole sizes in thin materials using a single tool. It covers a range from 7/8 in to 1 3/8 in and is made from uncoated high-speed steel. The 3/8 in hex shank fits standard drill chucks for quick changes. It is intended for electricians, HVAC technicians and maintenance workers who drill sheet metal, conduit boxes or plastic panels.

Not for deep holes or hard alloys

This bit suits jobs where the maximum drilling depth of 3 1/4 in is sufficient and the workpiece is mild steel, aluminium or plastic. It is not for buyers who need to drill thicker plate, stainless steel or hardened materials where a cobalt or carbide cutter would last longer. Users requiring a split-point tip for self-centring or a coated flute for chip evacuation should look at a different design.

7/8 in to 1 3/8 in size range

The decisive specification is the hole-diameter range of 7/8 in to 1 3/8 in; if your project calls for holes outside this window, the bit cannot be used. The 3/8 in hex shank and 3 1/4 in overall length determine chuck compatibility and reach, so verify those dimensions against your drill and workpiece before buying.