This chuck is 80mm outside diameter, 55mm inner registration diameter on back, and there are 3 M6x1.0 threaded holes on a 66mm diameter bolt circle. Made to mount directly on a 7x10, 12, or 14 inch mini lathe. It is very nicely machined. The ER-32 nut threads on buttery smooth.

This chuck is 80mm outside diameter, 55mm inner registration diameter on back, and there are 3 M6x1.0 threaded holes on a 66mm diameter bolt circle. Made to mount directly on a 7x10, 12, or 14 inch mini lathe. It is very nicely machined. The ER-32 nut threads on buttery smooth.

This chuck is 80mm outside diameter, 55mm inner registration diameter on back, and there are 3 M6x1.0 threaded holes on a 66mm diameter bolt circle. Made to mount directly on a 7x10, 12, or 14 inch mini lathe. It is very nicely machined. The ER-32 nut threads on buttery smooth.

Thank you, I arrived early I attached it to SIEG C2 The mounting part is a little tight

Thank you, I arrived early I attached it to SIEG C2 The mounting part is a little tight

Thank you, I arrived early I attached it to SIEG C2 The mounting part is a little tight

first class quality. will buy one more.

first class quality. will buy one more.

first class quality. will buy one more.

this product is hardened and ground and runs true, what more do you want

this product is hardened and ground and runs true, what more do you want

this product is hardened and ground and runs true, what more do you want

The quality looks very good. The threads feel silky smooth, so much that the nut keeps spinning when spun by hand. Grinding looks good.

The quality looks very good. The threads feel silky smooth, so much that the nut keeps spinning when spun by hand. Grinding looks good.

The quality looks very good. The threads feel silky smooth, so much that the nut keeps spinning when spun by hand. Grinding looks good.

Works very well, very little run out for me.

Works very well, very little run out for me.

Works very well, very little run out for me.

Buono

Buono

Buono

I love banggood!

I love banggood!

I love banggood!

Good quality chuck. Tight fit.. Would recommend it to others.

Good quality chuck. Tight fit.. Would recommend it to others.

Good quality chuck. Tight fit.. Would recommend it to others.

good quality and value for the money

good quality and value for the money

good quality and value for the money