Features:
1. 3 pcs different sizes of engine brake cylinder hones abrasive fit any standard 3/4 "to 7" drill.
2. The adjustable cylinder grinding set is used for rapid and accurate deglazer of engine cylinders.
3. The powerful arm of the brake cylinder hones makes abrasive to be aligned precisely.
4. The knurled nut of the brake cylinder hones can control tension.
5. The brake cylinder hones is with smooth glaze-breaking ability.
6. The brake cylinder hones set is with durable flexible shaft, automatic centering.

Notes:
1. The hones size measured by manual, maybe 1 ~ 3mm error, pls understand, thank you.
2. The listing pictures may not reflect the actual color of the products, due to differences between different monitors. Pls understand.