Mmm, by the looks of it. For power tool tips other then hex/allen/ball-end ones it seems it is not gonna be a one brand thing. I looked into it and made a little list, so everyone can make up their own mind what to get. It probably is not a complete list and I only focussed on everything non hex/allen/ball-end as you can get those powertool tips from a lot of RC companies.
What I found so far.
SOCKET / NUT DRIVERS 4.0mm
Traxxas, 8719-40, 4.0mm
https://traxxas.com/products/parts/8719-40
SOCKET / NUT DRIVERS 4.5mm
Traxxas, 8719-45, 4.5mm
https://traxxas.com/products/parts/8719-45
SOCKET / NUT DRIVERS 5.0mm
Traxxas, 8719-50, 5.0mm
https://traxxas.com/products/parts/8719-50
SOCKET / NUT DRIVERS 5.5mm
Arrowmax, AM-551155, 5.5 X 100MM
https://www.arrowmax-rc.com/xcart/nut-driver-5-5-x-100mm-power-tip-only-am-551155-.html
Hudy, # 175571, 5.5x90mm
https://www.hudy.net/xhudy/products/proddesc.php?prod_id=462&kategoria=0
Team Associated, 1666, 5.5mm x ??? (length not specified)
https://www.associatedelectrics.com...1666-ASC1666-ft_1_4_in_nut_driver_bit_5_5_mm/
Team EDS, EDS-551155, 5.5 X 100MM
https://www.team-eds.com/product-p/eds-551155.htm
Traxxas, 8719-55, 5.5mm
https://traxxas.com/products/parts/8719-55
SOCKET / NUT DRIVERS 7.0mm
Arrowmax, AM-551170, 7.0mm x 100mm
https://www.arrowmax-rc.com/xcart/nut-driver-7-0-x-100mm-power-tip-only-am-551170-.html
Hudy, # 177071, 7.0x90mm
https://www.hudy.net/xhudy/products/proddesc.php?prod_id=463&kategoria=0
Team Associated, 1667, 7.0mm x ??? (length not specified)
https://www.associatedelectrics.com...1667-ASC1667-ft_1_4_in_nut_driver_bit_7_0_mm/
Team EDS, EDS-551170, 7.0 X 100MM
https://www.team-eds.com/product-p/eds-551170.htm
Traxxas, 8719-70, 7.0mm
https://traxxas.com/products/parts/8719-70
SOCKET / NUT DRIVERS 8.0mm
Team Associated, 1668, 8.0mm x ??? (length not specified)
https://www.associatedelectrics.com...1668-ASC1668-ft_1_4_in_nut_driver_bit_8_0_mm/
Traxxas, 8719-80, 8.0mm
https://traxxas.com/products/parts/8719-80
SOCKET / NUT DRIVERS kit
Traxxas has a nice kit with 6 nut drivers that you should be able to also use in a power tool. Smaller version of the one Jato posted 2 pages earlier.
6-Piece Metric Nut Driver Master Set
#8719, 4.0 mm, 4.5 mm, 5.0 mm, 5.5 mm, 7.0 mm, 8.0 mm
https://traxxas.com/products/parts/8719
PHILLIPS PH1 / #1
Arrowmax, AM-541135, 3.5 X 100MM
https://www.arrowmax-rc.com/xcart/phillips-screwdriver-3-5-x-100mm-power-tip-only-am-541135-.html
Arrowmax, AM-541140, 4.0 X 100MM
https://www.arrowmax-rc.com/xcart/phillips-screwdriver-4-0-x-100mm-power-tip-only-am-541140-.html
Hudy, # 164071, 4.0 x 90 mm
https://www.hudy.net/xhudy/products/proddesc.php?prod_id=409&kategoria=0
Team Associated, 1672, PH1 (= 1.4mm) (length not specified)
https://www.associatedelectrics.com...2-ASC1672-ft_1_4_in_screwdriver_bit_phillips/
Team EDS, EDS-541140, 4.0 X 100MM
https://www.team-eds.com/product-p/eds-541140.htm
PHILLIPS PH2 / #2
Arrowmax, AM-541158, 5.8 x 100 mm
https://www.arrowmax-rc.com/xcart/phillips-screwdriver-5-8-x-100mm-power-tip-only-am-541158-.html
Hudy, # 165871, 5.8 x 90 mm
https://www.hudy.net/xhudy/products/proddesc.php?prod_id=410&kategoria=0
Team EDS, EDS-541158,5.8 X 100MM
https://www.team-eds.com/product-p/eds-541158.htm
SLOTTED / FLAT SL4 / 4mm
Arrowmax, AM-531140, 4.0 X 100MM
https://www.arrowmax-rc.com/xcart/flat-head-screwdriver-4-0-x-100mm-power-tip-only-am-531140-.html
Team Associated, 1671, SL4 (length not specified)
https://www.associatedelectrics.com.../1671-ASC1671-ft_1_4_in_screwdriver_bit_flat/
I looked at other brands like Losi, Duratrax, Tekno RC, Traxxas and others, I cannot find more options within the RC brands.
Might have missed one. Offcourse there are options outside RC brands, but they usually do not offer nut drivers.
For instance Wiha have some nice sets.
https://www.wihatools.com/bits/bit-sets
Problem for our hobby is that the bits are often too short.
But to conclude. If you wanna expand your RC power tool driver bit collection with nut drivers, Phillips and slotted options. It is not as easy as with hex/allen options out there. You will need to mix and match brands if you like all the available sizes.
For the nut drivers Traxxas has the most sizes if you do not mind to buy their kit. Otherwise Team Associated has 3 instead of 2 sizes as the rest. Length wise no information on the Team Associated ones and the Traxxas ones. I send both Traxxas and Team Associated a PM to ask for the length of their drivers. No answer yet to both. For the rest Hudy is 90mm long and Arrowmax / Team ESD are 100mm long.
For Phillips, Arrowmax offers 3 sizes, the rest offers 2 sizes.
And for slotted / flat, it is either Arrowmax or Team Associated. No other options there.
I am gonna wait for the answers from Traxxas and Team Associated for the nut drivers. If anyone knows, please let me know.
For now I am tempted at the Traxxas set for the nut drivers and either Arrowmax or Team Associated for Philips/slotted drivers. Bit of a tool nut, so I guess I have the let go the quality thing a bit (or maybe not) if I want as much of a collection of sorts and sizes.
Anyway, hope this post is helpfull for everyone.
Edit 1: Traxxas sells the nut drivers also separatly, so just added those to the list above.
If you do not care of the pouch and handle of the kit buying them separately is cheaper.
Edit 2: Traxxas ones apparently are 4inch/100mm long and the Team Associated are 75mm.