Quick-Lock Adjustable Kettlebell Handle 12.5

The QLKB handle weighs 12.5 lbs empty and will accept the Quick-Lock Dumbbell weight plates and uses the same locking screws. This makes it a great accessory to expand the capabilities of our adjustable dumbbells and save you money. The standard locking screws will allow building up to 47.5 lb KB weight and with the Add on Kit locking screws you can go up to 70 lbs KB weight. As you can see this is a serious training tool at these kinds of weight capacities. It locks up absolutely tight and is safe to swing around aggressively. The handle is big enough for two-handed use but shaped well for a single hand. The handle is extra strong and provides just the perfect amount of grip. The shape and ergonomics designed into this KB are the results of extensive R&D. The locking screw will not interfere with your grip with the extra room in the handle area. The QLKB is sold as a single handle but if you like an extra challenge, you can get two!

Buying guide

Best Kettlebell for Your Home Gym — July 2026

What is a Kettlebell?

What kettlebells are

A kettlebell is a cast-iron (or steel) ball with a handle, built for swings, cleans, snatches, presses, and carries — ballistic, full-body work a dumbbell doesn’t do as well. One or two bells cover a lot of conditioning and strength.

What actually matters

Cast iron vs. competition. One-piece cast iron is the durable, affordable default. Competition (“comp”) bells are steel and share the SAME dimensions across every weight, so your technique doesn’t change as you go heavier — worth it for dedicated technique/girevoy work.
Handle width & finish. Handle diameter and width decide grip comfort for two-hand swings vs. cleans; a smooth handle takes chalk well and won’t tear hands the way an overly rough powder coat can.
Coating. Powder coat grips well but varies in roughness; e-coat is smooth and rust-resistant; bare handles need chalk.
Single vs. adjustable. An adjustable kettlebell saves space and money if you want a range, but adds bulk and can feel less balanced than a fixed bell.
What to buy first. Common starting points are ~16 kg (35 lb) for many men and ~8-12 kg for many women — then add a heavier and a lighter bell as you progress.

Who it’s for

Anyone who wants conditioning, posterior-chain power, and loaded carries without a rack. Start with one well-sized cast-iron bell; add weights or a competition set as your training demands.