90° Square Shoulder Inserts / APKT-Style Inserts
Dapra's Square Shoulder Inserts are APKT-style inserts that are offered in pressed, lapped and molded versions for a combination of economy and performance, with a broad selection of insert radii for varying corner requirements.
APET & XPET CNC Pressed Inserts
The most economical, high-performance inserts available!
- APET and XPET inserts are manufactured using CNC press technology, providing reliable accuracy and repeatability.
- Feature a high positive pressed cutting geometry for aggressive material removal rates and low horsepower consumption.
- Have a strong edge preparation for heavy chiploads.
- Are available in a large variety of corner radii with a true tangential blend.
- Provide excellent surface finishes due to computer-designed wiper geometry.
- Are economical and offer high-performance cutting capabilities.
- APET inserts feature a high-strength cutting edge and are ideal for high-performance milling of most harder steels and cast irons.
- XPET inserts are ideal for high-performance milling of stainless steels and nonferrous materials such as copper alloys and aluminum. Also good for gummy, softer, free-machining steels.
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• Stocked standard
XPET & APET Insert Sizes and Available Grades Insert l w r Uncoated Coated Pressed to Size DMP35
DMP30
DMK25
DMK30†DMP353
DMP303
DMK253
DMK303†DMP35-HP
DMP30-HP
DMK25-HP
DMK30-HP†DMP357
DMP307
DMK257
DMK307†DMP35-GLH
DMP30-GLH
DMK25-GLH
DMK30-GLH†APET inserts feature a high-strength cutting edge and are ideal for high-performance milling of most harder steels and cast irons. APET100308 .380" .250" .031" • • • • • APET100316 .380" .250" .062" • • • • • APET160408 .625" .375" .031" • • • • • APET160412 .625" .375" .047" • • • • • APET160416 .625" .375" .062" • • • • • APET160431* .625" .375" .120" • • • • • XPET inserts are ideal for high-performance milling of stainless steels and nonferrous materials such as copper alloys and aluminum. Also good for gummy, softer, free-machining steels. XPET100308 .380" .250" .031" • • • • • XPET100316 .380" .250" .062" • • • • • XPET160404 .625" .375" .015" • • • • • XPET160408 .625" .375" .031" • • • • • XPET160412 .625" .375" .047" • • • • • XPET160416 .625" .375" .062" • • • • • XPET160424 .625" .375" .094" DMP35 ONLY •** •** XPET160431* .625" .375" .120" • • • • • † New DMK30 substrate is available for XPET inserts only..
* This insert is designed for heavy roughing and has a corner radius that actually measures closer to .115" than .125" (.010" difference) due to distortion by the positive radial insert angle.
** Only available in DMP35 substrate (DMP35-HP and DMP35-GLH).
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XPET Lapped, Aluminum-Cutting Inserts
- Ground and lapped rake face is ideally suited for machining aluminum and copper alloys, bronze, brass, etc. Built-up edge is virtually eliminated.
- Positive rake angle is higher than standard inserts, providing highest shear possible.
- Sharp cutting edge is configured specifically for cutting nonferrous materials, yielding the ultimate in low-torque material removal.
- Variety of corner radii available with a true tangential blend.
PCD-tipped inserts provide the ultimate in wear resistance for high-volume aluminum or graphite milling. Available in 1/32" corner radius only.
Coated versions available upon request. Contact Dapra for details.
XPET Lapped, Aluminum-Cutting Inserts Insert l w r Uncoated Coated Al, Ti, SS DMK25 DMK253 DMK257 GLH XPET100308-ALU .380" .250" .031" • • • • XPET100316-ALU .380" .250" .062" • o o o XPET160404-ALU .625" .375" .015" • o o • XPET160408-ALU .625" .375" .031" • • • • XPET160412-ALU .625" .375" .047" • o • • XPET160416-ALU .625" .375" .062" • • o • XPET160431-ALU* .625" .375" .120" • o o o * This insert is designed for heavy roughing and has a corner radius that actually measures closer to .115" than .125" (.010" difference) due to distortion by the positive radial insert angle.
PCD-Tipped Inserts Insert l w r PCD Length Uncoated PCD-Tipped DMK25 XPET160408-PCD-225 .625" .375" .031" .225" •
Dapra 90° Square Shoulder products are made in the USA.