they have just announced the production of 3 new X-TERRA coils! 
A 6-inch DD at 3 kHz, a 15-inch DD at 3 kHz and a 15-inch DD at 18.75 kHz. See the sticky post for more information on these new coils.
http://coiltekmanufacturing.com.au/about-us.html
As taken from their website........
Coiltek Manufacturing is Optimising the Opportunity, offering more chances for success when out in the field prospecting and metal detecting.
We manufacture metal detector coils and accessories which are proven performers. Different terrains call for different products and that's where you need greater choices, you will find them with our diverse range of coils and accessories.
We also provide services to the electronics industry by producing electronic wire wound components for circuit boards like inductors and transformers where custom wound items are necessary. Coiltek can also provide locating equipment for related industries who deal with large mining companies.
Constantly investing in intensive research and development means more opportunities for prospectors whether they're hobbyists or professionals.
With a worldwide authorised dealer network spanning from USA to Russia, Australia, UK and Europe your nearest Coiltek product is easily obtained from professionals, who offer excellent up to date knowledge to help improve your success rate. Our pride in our products is reflected in many of the detecting fields today with the majority of Minelab detector owners using a Coiltek product.
All of our products are made by our highly trained professional team who take great pride in each step of the manufacturing process. You can be guaranteed of the highest standard with every Coiltek product.
A 6-inch DD at 3 kHz, a 15-inch DD at 3 kHz and a 15-inch DD at 18.75 kHz. See the sticky post for more information on these new coils. http://coiltekmanufacturing.com.au/about-us.html
As taken from their website........
Coiltek Manufacturing is Optimising the Opportunity, offering more chances for success when out in the field prospecting and metal detecting.
We manufacture metal detector coils and accessories which are proven performers. Different terrains call for different products and that's where you need greater choices, you will find them with our diverse range of coils and accessories.
We also provide services to the electronics industry by producing electronic wire wound components for circuit boards like inductors and transformers where custom wound items are necessary. Coiltek can also provide locating equipment for related industries who deal with large mining companies.
Constantly investing in intensive research and development means more opportunities for prospectors whether they're hobbyists or professionals.
With a worldwide authorised dealer network spanning from USA to Russia, Australia, UK and Europe your nearest Coiltek product is easily obtained from professionals, who offer excellent up to date knowledge to help improve your success rate. Our pride in our products is reflected in many of the detecting fields today with the majority of Minelab detector owners using a Coiltek product.
All of our products are made by our highly trained professional team who take great pride in each step of the manufacturing process. You can be guaranteed of the highest standard with every Coiltek product.
