3M™ Roto Peen Assembly Kit 09041, 1 ea/Case

The 3M™ Roto Peen Assembly Kit contains the components needed for captive shot peening, repair or maintenance of metal parts. Each kit includes a Roto Peen Almen Strip Holder, TC-330 Roto Peen Flap Assemblies in two sizes (9/16” x 1-1/4” and 1” x 2”), and Roto Peen Mandrels 7210 and 7211. This kit does not include the Almen Strips, Die Grinder, Almen Gauges, or other measurement equipment.
Special Price $682.90 Regular Price $803.41
UPC 00048011171579
3M ID 7000045975
Packaging Case
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Getting You Started

The 3M™ Roto Peen Assembly Kit delivers the parts necessary to work on a range of sizes, geometries, applications. This allows users to complete peening tasks, primarily in the aerospace industry, without the use of large, stationary equipment. Combined with the correct tools, 3M™ Roto Peen Assembly Kit can help you with peening after grinding, before plating, forming and straightening, bond testing, and more.

Captive Shot Peening

Used extensively for production, maintenance and repair in the aerospace industry, captive shot peening imparts residual compressive stress into the surface of metals by hurling shot against the metal like a small hammer. This compressive surface stress strengthens the material, improving resistance to fatigue fracture and stress corrosion cracking. Captive shot peening is a quick, portable, and cost-effective method of aerospace production and repair.

High Quality Construction

To create the unique and portable assemblies included in this kit, durable tungsten carbide shot is adhered to flexible polymeric flaps using high-strength resin, which helps resist damage and heat from consistent use. The flaps are secured by a mandrel designed specifically for this application. The flap/mandrel assembly can then be placed in the collet of a rotary tool designed to run at the appropriate RPM for the needed intensity.


  • Convenient kit includes Roto Peen Almen Strip Holder, two sizes of Flap Assemblies, and Mandrels
  • The different size flap assemblies and mandrels allow for use on large flat areas or smaller areas
  • Captive shot peening is portable, compact and easy- to-use
  • Tungsten carbide shot bonded to the flaps provides a cleaner peening method than loose shot media peening
  • 3M Roto Peen flaps, mandrels, and Almen Holder adhere to SAE standards
More Information
3M ID 7000045975
Part number 9041
Keywords 3M, Roto Peen Assembly Kit, shot peening kit, Roto Peen Almen Strip Holder, TC-330 Roto Peen Flap Assemblies, Roto Peen Mandrels, captive shot peening, captive shot peening aerospace, metal parts repair, maintenance of metal parts, metal parts maintenance, portable shot peening, tungsten carbide flaps, SAE standards shot peening, aerospace maintenance tools, aerospace repair tools, peening tasks aerospace, fatigue fracture resistance, stress corrosion cracking resistance, high-strength resin flaps, metal surface strengthening, flexible polymeric flaps, rotary tool shot peening, metalworking tools, manufacturing tools, transportation tools, appliance maintenance tools.
Global Product Hierarchy Tools & Equipment > Power Tools > Power Tool Parts & Accessories
Abrasive Material Steel Shot
Backing Material Non Pertinent
Product Type simple
Quantity 0
Trademark 1 3M™
Country of Origin United States
Sales Unit EA
SAP Shelf Life In Days 1825
Base - Billing Unit EA
Base - Metric Gross Weight 844.6 G
Base - Item Quantity 1
Base - Unit EA
Unit of Use - Billing Unit EA
Unit of Use - Customary Cubic Dimension 280.7053173161464 ci
Unit of Use - Customary Gross Weight 1.862024266413476 lbs
Unit of Use - Customary Net Weight 1.5998946366756566 lbs
Unit of Use - Metric Cubic Dimension 4599.936 CCM
Unit of Use - Metric Net Weight 725.7 G
Unit of Use - Item Quantity 1
Unit of Use - Total Unit Quantity 1
Unit of Use - Previous Packaging Level Quantity 1
Unit of Use - Item Unit EACH
Unit of Use - Unit EA
Shipper - Billing Unit EA
Shipper - Customary Cubic Dimension 280.7053173161464 ci
Shipper - Customary Gross Weight 1.862024266413476 lbs
Shipper - Customary Net Weight 1.5998946366756566 lbs
Shipper - Customary Height Dimension 2.5984251968503935 in
Shipper - Customary Length Dimension 10.393700787401574 in
Shipper - Customary Width Dimension 10.393700787401574 in
Shipper - Metric Cubic Dimension 4599.936 CCM
Shipper - Metric Weight 844.6 G
Shipper - Metric Net Weight 725.7 G
Shipper - Metric Height Dimension 0.066 M
Shipper - Metric Length Dimension 0.264 M
Shipper - Metric Width Dimension 0.264 M
Shipper - Item Quantity 1
Shipper - Total Unit Quantity 1
Shipper - Previous Packaging Level Quantity 1
Shipper - Previous Packaging Level Unit EACH
Shipper - Item Unit EACH
Shipper - Unit CS
Pallet - Billing Unit EA
Pallet - Customary Cubic Dimension 91535.61614209843 ci
Pallet - Customary Gross Weight 511.47244826891597 lbs
Pallet - Customary Net Weight 409.5725860644437 lbs
Pallet - Customary Height Dimension 46.06299212598425 in
Pallet - Customary Length Dimension 47.63779527559055 in
Pallet - Customary Width Dimension 41.732283464566926 in
Pallet - Metric Cubic Dimension 1.5 M3
Pallet - Metric Net Weight 185.779 KG
Pallet - Metric Height Dimension 1.17 M
Pallet - Metric Length Dimension 1.21 M
Pallet - Metric Width Dimension 1.06 M
Pallet - Item Quantity 256
Pallet - Total Unit Quantity 256
Pallet - Previous Packaging Level Quantity 256
Pallet - Previous Packaging Level Unit BOX
Pallet - Item Unit EACH
Pallet - Unit PAL
Pallet - Pallet Layer Quantity 16
Pallet - Shipping Container Per Layer Quantity 16
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