1. Bubuka jeung Leuwihview
The WORKPRO 20V Cordless Angle Grinder Kit is a versatile and portable power tool designed for grinding, cutting, and polishing various materials. Its cordless design offers freedom of movement for both indoor and outdoor applications. Equipped with a powerful 20V 4.0Ah Lithium-Ion battery and a fast charger, this tool ensures stable and long-lasting performance. This manual provides essential information for safe and effective operation, maintenance, and troubleshooting to help you achieve optimal results.

Figure 1.1: Complete WORKPRO 20V Cordless Angle Grinder Kit.
2. Émbaran Kasalametan penting
Salawasna baca sareng pahami sadaya peringatan sareng pitunjuk kaamanan sateuacan ngoperasikeun alat listrik ieu. Gagal nuturkeun peringatan sareng pitunjuk tiasa nyababkeun sengatan listrik, kahuruan, sareng/atanapi tatu parah.
2.1 Umum Power Alat Kasalametan
- Kasalametan Area Gawé: Jaga wewengkon gawé anjeun beresih jeung cahayana alus. Wewengkon nu pabalatak atawa poek ngondang kacilakaan. Ulah ngajalankeun parabot kakuatan dina atmosfir ngabeledug, kayaning ku ayana cair kaduruk, gas, atawa lebu.
- Kasalametan listrik: Hindarkeun kontak awak sareng permukaan anu dihubungkeun ka taneuh atanapi dihubungkeun ka taneuh (contona, pipa, radiator, kompor, kulkas). Aya résiko sengatan listrik anu ningkat upami awak anjeun dihubungkeun ka taneuh atanapi dihubungkeun ka taneuh.
- Kasalametan Pribadi: Always wear eye protection. Use hearing protection when operating the tool for extended periods. Wear appropriate clothing; avoid loose clothing or jewelry. Keep hair, clothing, and gloves away from moving parts.
- Pamakéan sareng Perawatan Alat: Ulah maksakeun pakakas listrik. Anggo pakakas listrik anu pas pikeun aplikasi anjeun. Éta bakal ngalakukeun padamelan anu langkung saé sareng langkung aman dina laju anu dirancang pikeun éta. Cabut batré tina pakakas listrik sateuacan ngadamel pangaluyuan, ngarobih asesoris, atanapi nyimpen pakakas listrik.
2.2 Specific Angle Grinder Safety
- Salawasna anggo pelindung anu disayogikeun sareng alat ieu. Pastikeun pelindungna dipasang kalayan pageuh sareng diposisikan pikeun kaamanan maksimal.
- Use only grinding wheels and cutting discs that are specifically designed for an angle grinder and are rated for the tool's maximum RPM.
- Ngamankeun workpiece nu. Paké clamps or a vise to hold the workpiece firmly. This frees both hands to operate the tool safely.
- Ngajaga cekelan teguh dina alat ku duanana leungeun salila operasi.
- Be aware of kickback. Kickback is a sudden reaction to a pinched or snagged rotating wheel. Always maintain proper footing and balance.
3. Eusi Paket
Your WORKPRO 20V Cordless Angle Grinder Kit includes the following components:
- 1 x Panggiling Sudut Tanpa Kabel
- 1 x Batré Litium-Ion 4.0Ah
- 1 x Gancang Charger
- 1 x Rubberized 3-Position Anti-Slip Auxiliary Handle
- 1 x Grinding Wheel Protector
- 1 x Cutting Wheel Protector
- 5 x Metal Cutting Wheels (4-1/2”)
- 5 x Grinding Wheels (4-1/2”)
- 1 x Spanduk


Figure 3.1: Included discs, guards, and spanner. Figure 3.2: 4.0Ah Lithium-Ion Battery and Fast Charger.
Video 3.1: Hiji leuwihview of the WORKPRO 20V Cordless Angle Grinder Kit and its components.
4. Setélan
4.1 Ngagantelkeun gagang bantu
The auxiliary handle can be installed in three different positions (left, right, or top) to provide optimal comfort and control for various tasks and user preferences. Simply screw the handle into the desired threaded opening on the grinder head.

Figure 4.1: The 3-position anti-slip auxiliary handle for enhanced ergonomics.
4.2 Installing Wheel Guards
Select the appropriate wheel guard (grinding or cutting) for your task. The guards feature a quick-installation mechanism that does not require additional tools. Align the guard with the grinder head and snap it into place, ensuring it is securely fastened and positioned to deflect sparks and debris away from you.
4.3 Masang Grinding / Motong Cakram
- Pastikeun batréna dicabut tina panggiling.
- Pencét jeung tahan tombol konci spindle ayana dina sirah coét.
- Teundeun flange jero kana spindle nu.
- Position the desired grinding or cutting disc onto the spindle, ensuring it sits flush against the inner flange.
- Place the outer flange onto the spindle, on top of the disc.
- Use the provided spanner to tighten the outer flange clockwise until the disc is securely fastened. Release the spindle lock.
4.4 Ngecas Batré
Before first use, fully charge the 4.0Ah Lithium-Ion battery. Connect the fast charger to a standard power outlet. Slide the battery pack onto the charger until it clicks into place. The charger's indicator light will show the charging status (e.g., red for charging, green for fully charged). Once fully charged, remove the battery from the charger.
Video 4.1: Demonstrates the quick installation of the guard and disc, and battery charging process.
5. Parentah Operasi
5.1 Powering on / Pareum
The angle grinder features an ergonomic two-step operational switch located in the center of the top for convenient access by both left- and right-handed users. To turn the tool ON, push the switch forward and then up. To turn the tool OFF, simply push the switch down.

Figure 5.1: The two-step operational switch for safe and convenient use.
5.2 Grinding Operations
For grinding tasks, ensure the grinding wheel protector is installed and a grinding disc is securely attached. Hold the grinder firmly with both hands, maintaining a stable stance. Apply light, even pressure to the workpiece, allowing the 7500 RPM speed to do the work. Move the grinder smoothly across the surface to achieve desired results. The tool's lightweight design (3.5 pounds without battery) helps reduce hand pressure during extended use.


Figure 5.2: Grinding metal with the WORKPRO Angle Grinder, demonstrating sparks and stable operation.
5.3 Operasi motong
When cutting, use the cutting wheel protector and a suitable cutting disc. Position the workpiece securely. Start the grinder before making contact with the material. Guide the disc through the material with steady, controlled movements. Avoid twisting or binding the disc, which can cause kickback. The tool's ergonomic design and rubberized grip provide a better user experience during cutting tasks.
Video 5.1: Demonstrates metal grinding and cutting, as well as PVC cutting, highlighting flexible use.
6. Pangropéa
Regular maintenance ensures the longevity and optimal performance of your WORKPRO Angle Grinder.
6.1 beberesih
- After each use, clean the tool with a soft, dry cloth.
- Periodically clear dust and debris from the ventilation openings to ensure proper heat dissipation. The grinder features a stereo circulating heat dissipation system with multiple vents for more uniform heat dissipation.
- Ulah make cai atawa cleaners kimiawi.

Figure 6.1: Stereo Circulating Heat Dissipation through multiple vents.
6.2 Perawatan Batré
- Simpen batré di tempat anu tiis sareng garing jauh tina sinar panonpoé langsung sareng suhu anu ekstrim.
- Do not store fully discharged batteries for long periods. Recharge them periodically.
- Avoid exposing the battery to moisture or water.
6.3 Inspeksi sareng Panggantian Disk
- Inspect grinding and cutting discs before each use for cracks, chips, or excessive wear. Replace damaged or worn discs immediately.
- Always use the correct type and size of disc for your application.
7. Cara ngungkulan
Bagian ieu ngabahas masalah umum anu anjeun tiasa pendak sareng panggiling sudut anjeun.
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Alat henteu ngamimitian | Batré teu dieusian Batré teu leres diselapkeun Switch teu pinuh aktipitas | Ngecas batré pinuh Pastikeun batré diklik kana tempatna Push switch fully forward and up |
| Kinerja/kagancangan anu dikirangan | Ngecas batré low Overheating Disk anu tos usang atanapi salah | Ngecas batré Allow tool to cool down; clear vents Replace disc with appropriate type |
| Geter kaleuleuwihi | Cakram anu ruksak atanapi teu saimbang Improperly installed disc/flanges | Ganti disk Reinstall disc and flanges correctly, ensuring spindle lock is released |
8. Spésifikasi
Technical details for the WORKPRO 20V Cordless Angle Grinder Kit:
- merek: WORKPRO
- Jumlah modél: W125051A
- Sumber Daya: Batré Powered
- Jenis Batré: 20V 4.0Ah Litium-Ion
- Laju Rotasi Maksimum: 7500 rpm
- Diaméter piringan: 4-1 / 2 inci
- Bahan: Aluminum (housing)
- warna: Héjo
- Item Weight (without battery): 3.5 pon (kira-kira 1.59 kg)
- Ukuran produk: 13.58 "L x 5.91" W x 7.48" H
- Pabrikan: HANZGHOU GREATSTAR INDUSTRIAL CO.LTD
- UPC: 820909764120
9. Garansi jeung Rojongan
For detailed warranty information or technical support, please refer to the official user guide PDF provided with your product or visit the WORKPRO website. You can access the user guide Ieuh.





