Hello Wayne. The 'K' indicates that it is a short shaft model. Both the HLA 135 K is offered with a 0° head and 0°-145° adjustable head. The unit with a longer shaft, the HLA 135 is only offered with the 0°-145° adjustable head. Your Local dealer can help identify what model works best for you. Thank you for choosing STIHL.
Does the 0° have a shorter drive tube and can it be used to make a different length tool on the 145° models?
Hello Wayne. The 'K' indicates that it is a short shaft model. Both the HLA 135 K is offered with a 0° head and 0°-145° adjustable head. The unit with a longer shaft, the HLA 135 is only offered with the 0°-145° adjustable head. Your Local dealer can help identify what model works best for you. Thank you for choosing STIHL.
GG 😁✌️