Makita Hammer Drill HM0830 - Cleaned, O-ring and grease replaced [6-piece set]

Purchased new, purchase date forgotten.
Wiring cord stamped 2019.
No stickiness or deterioration.

Serial number is 188572, late 180,000s.

I owned two units and kept this one with little use, but it was used on job sites, so there are scratches and signs of use.
*Usage time was very short, and the yellow grease remains. Please see photo 17.
This is a photo before wiping.

Disassembled, wiped down, and cleaned each part.
O-rings have been replaced, and new grease has been applied.
Please see photos 11-16.
Carbon brush remaining: New 16.5 mm
Carbon brush for sale: 16.5 mm
No wear or uneven wear, so no replacement needed.

Tested for operation after maintenance.

- All accessories are shown in the photos.
Dedicated case
Chisels: 6 pieces, mixed new and used.

Chisel ①
House B.M. Scaling Chisel
ST-1728, 17H, 280mm total length, 47mm tip width
New, unused
MonotaRO: ￥2,748 (tax included) as of 2026/2/16

Chisel ②
Mokuba
17H, 280mm total length, 48mm tip width
Used

Chisel ③
Mokuba High-Speed Steel Blue Point
17H, 280mm total length
New, unused
Minor scuffs from storage, please check photos.
Lowest online price as of 2026/2/16
Yahoo! Shopping: ￥2,152 (shipping not included)

Chisel ④
Manufacturer unknown, Bull Point
17H, 280mm total length
Used, short usage period, please check tip condition in photos.

Chisel ⑤
Mokuba
17H, 320mm total length, 75mm tip width
Used

Chisel ⑥ Makita Bull Point A-21244
17H, 450mm total length
New, unused
Rakuten Ichiba: ￥2,970 (tax included)
Package is old but unused.

*Please refrain from purchasing if you are overly concerned about the condition (nervous individuals).

- Even if you have questions or comments, priority will be given to those who purchase immediately.

The item will be packed with two layers of bubble wrap around the dedicated case for shipping.
Hammer drill case included: approx. 7.5 kg
Chisels: approx. 3.5 kg
Total: 11 kg

Thank you for looking.