Indexable Cutters Optimize Productivity

BIG Kaiser offers the R-Cutter ultra high feed front and back radius chamfering mill and the BF-Cutter for back spot facing of cap bolt holes.

BIG Kaiser Precision Tooling Inc. (Hoffman Estates, IL) introduces the new R-Cutter (Pat. P) and BF-Cutter from BIG Daishowa. The R-Cutter is an ultra high feed front and back radius chamfering mill which features high rake angles that reduce cutting resistance and minimize burr generation. The radius chamfering mill is offered as a single-insert design and a four-insert design for higher feed rates. The coated carbide insert design allows for four indexes, is available with radii of .02 in – .16 in, and is optimized for all steels (including stainless), cast iron and aluminum.

A variety of R-Cutter types are available, including a single insert front chamfering-only design with shank diameters of Ø16 and Ø20mm, and front-and-back combination chamfering models with cutting shank diameters of Ø10 mm, Ø16 mm and Ø32 mm. Each model featuring a single insert design allows for cutting in the tightest of spaces.

The BF-Cutter was exclusively designed for back spot facing of cap bolt holes, sizes M6-M16. It features the world’s smallest square indexable insert (with 4 indexes), and is ideal for all steels (including stainless), cast iron and aluminum. The coolant-through capability helps cool down the back side cutting area, increasing tool life – a feature not available in most other models on the market.

The BF-Cutter is exclusively designed for back spot facing of cap bolt holes. Coolant supply direct to the cutting edge is possible for all sizes. Securely cooling down the backside cutting area where the coolant is usually unreachable makes tool life increase.

The BF-Cutter is available for minimum facing diameters beginning at Ø.433 in and up to Ø1.024 in. A unique, offset design allows for easy programming – simply offset the centers between the machine spindle and the hole when entering or exiting the hole with the cutter. The minimum hole diameter for possible entry is Ø.256 in.

Whether front or back radius chamfering, or back spot facing bolt holes, these new cutters from BIG Daishowa with very unique features are great additions to any shop’s tool arsenal in that they optimize productivity for any applicable operation they are called up for,” says Jack Burley, vice president, sales and engineering, BIG Kaiser. “Both tools are available from BIG Kaiser’s new Indexable Cutting Tools Catalog, which details BIG Daishowa’s entire line of high performance indexable cutting tool systems.”

BIG Kaiser Precision Tooling Inc. is a leader in high precision tooling systems and solutions. With brands including BIG Daishowa, KAISER, Speroni, Unilock, Sphinx and more, BIG Kaiser’s line is focused on extreme accuracy and repeatability. BIG Kaiser’s mission is to support North American manufacturers with products that are designed and manufactured to a superior standard. Guaranteed.

BIG Kaiser, Hoffman Estates, IL at 847−228−7660, e-mail or visit



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