Insty top patents, nothing more to say. The design is impeccable. I would recommend giving him 2-3 drops of oil the first time, it will last a lifetime. As with any tool, excessive abuse will not extend the life of the tool. Be aware of the limitations, bits are held in place by the friction of ball bearings, so don't give them full beans with a powerful percussion gun.
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review
π§ High-Quality TIMKEN 6203 2RSC3 6203 2RS Bearing - Size: 17X40X12mm
4 Review
Linear Clamping Support Bearing by Sydien
4 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
6 Review