Most torque wrenches don't torque accurately in the upper and lower extremes of their torque range. For 78- inch pounds, I use this one. https://www.amazon.com/gp/aw/d/B07M68FY3X?psc=1&ref=ppx_pop_mob_b_asin_title

I bought and used these and was very happy with them:

$32 - LEXIVON Inch Pound Torque Wrench 1/4-Inch Drive | 20~200 in-lb/2.26~22.6 Nm (LX-181)

$15 - LEXIVON HEX Bit Socket Set, Premium S2 Alloy Steel | 13-Piece Metric 2mm - 14mm Set | Enhanced Storage Case (LX-141)