I have the ZR-4-24 - 2, 1/4th oz and 2, 1/2 oz. This makes a blade bait similar to the old Silver Buddy
The 1/4th size takes ZB-S, also used on the 3/8 size
The 1/2 oz size takes ZB-M The ZB-M Blade is used in the 1/2oz. 5/8oz. and 3/4oz. cavities
For a 100 each Small in Brass and Nickle and 100 each Medium in Brass and Nickle
Barlows - $116.90
Janns Netcraft $117.43
Zeiners - $126.40 + USPS, they go by USPS and not sure if all 4 bags would fit in small flat rate box
Do-It - $134.90
At one time there was talk over at TU some guys were doing the measuring of the blade inserts to find if anyone could make them cheaper and in bulk. Here's a link to that thread -
http://www.tackleunderground.com/co...-blade-bait-inserts/?hl=+blade++bait++inserts