The 879950 tool
These keyseat cutters are the 879950 square-profile, reduced-shank tool in the Type II configuration. The listed cutter diameter is 1.2500 inches and the cutter width is 0.1250 inch. These dimensions describe the cutting head, not the shank that fits the tool holder.
This page identifies one uncoated solid-carbide tool. A different coating, cutting width or shank diameter would require a separate product reference, even if the tool looks similar in a catalogue illustration.
Cutting head and shank dimensions
The source lists 14 flutes and a radial depth of cut of 0.3650 inch. Shank diameter is 0.5000 inch, overall length is 3.1250 inches and shank length is 3.0000 inches. Keep radial depth, cutter width and overall length distinct when comparing a tool with a machining plan.
Check the tool envelope against the intended feature and the surrounding workpiece geometry. The 1/8-inch cutter width does not by itself define access clearance, reach or the finished tolerance of a slot. Those depend on the complete setup as well as the selected tool.
Choose machining parameters separately
The product page provides a tool identity and geometry; it does not supply a universal spindle speed or feed rate. Workpiece material, tool engagement, holder and machine setup all need to be considered using appropriate cutting data. We do not infer a recommended feed or speed from the catalogue dimensions.
The specified finish is uncoated. Do not treat that as interchangeable with a coated version when choosing cutting data. Similarly, a nominally matching diameter on another cutter does not establish the same flute count, cutting width, profile or reach.
Comparing keyseat cutters before a request
Check the tool number against the drawing or process plan first. Then compare cutter diameter, width, radial depth of cut, shank diameter and overall length in that order. This keeps a long-shank or wider-head alternative from being mistaken for the researched 879950 tool.
The displayed image is an illustration rather than a scale drawing. It cannot confirm edge preparation or dimensional tolerance. The request is for the tool alone; it does not include a holder, collet, machine program or machining service.
Quantity and confirmation
One proposed request unit represents one 879950 cutter. Enter the number of tools required and review the exact SKU with your name and email. Confirming expresses interest only and does not establish a purchase price or delivery commitment.
Availability, final price and delivery timing must be confirmed before any purchase. No payment is collected and no charge, order or fulfillment is authorized by submitting the form.
Questions about 879950
- What is the cutting width of these keyseat cutters?
- The 879950 tool is listed with a 0.1250-inch, or 1/8-inch, cutter width.
- Is the 1¼-inch dimension the shank diameter?
- No. It is the cutter diameter. The shank diameter is 0.5000 inch.
- Is this the coated version?
- No. This exact reference is the uncoated, square-profile Type II tool.
- Are speeds and feeds included in the request?
- No. Confirm suitable machining parameters separately for the actual workpiece and setup. The request identifies the tool and quantity only.