(1) The sample materials are Q235A and δ3 steel plates. Previous page
An angle grinder, also known as a side grinder or disc grinder, is a handheld power tool used for grinding (abrasive cutting) and polishing. Although developed originally as tools for rigid abrasive discs, the availability of an interchangeable power source has encouraged their use with a wide variety of cutters and attachments.
Angle grinders can be powered by an electric motor or compressed air. The motor drives a geared head at a right-angle on which is mounted an abrasive disc or a thinner cut-off disc, either of which can be replaced when worn. Angle grinders typically have an adjustable guard and a side-handle for two-handed operation. Certain angle grinders, depending on their speed range, can be used as sanders, employing a sanding disc with a backing pad or disc. The backing system is typically made of hard plastic, phenolic resin, or medium-hard rubber depending on the amount of flexibility desired.
Electric Angle Grinder,lithium electric tool Behappy Crafts (suzhou)Co.,Ltd , https://www.craftsbehappy.com
(2) The file material must be 3Cr2 W8V. After machining the body, the δ2 ​​Saw Blade cutter is used to cut two pieces. The welding rod with the protection pad is graded D337. The two base metals are preheated to 500-550 °C before welding, and heat-treated to C45 in time after welding.
(3) Pressure ring, sample plate, forming boring Tool and flat ring, used after custom welding handle. 
Forming boring tool application (2)
3. Tooling design and manufacturing instructions tooling shown in Figure 4 ~ Figure 8.