Handwheels have been a big part of SIKO since 1963. Here's why they continue to grow in popularity:

Handwheel	Size options	Handle options	Orientation	Max. bore	Surface options	Indicators
HG	63 mm [2.48"] 98 mm [3.86"]		horizontal	16 mm	aluminum plastic-reinforced Nirosta	S50/1 S80/1 SZ80/1 analog analog+digital
HK/HKL	80 mm [3.15"] 100 mm [3.94"] 120 mm [4.72"] 140 mm [5.51"] 160 mm [6.3"] 200 mm [7.87"]	ball, fixed ball, rotatable cylinder, rotatable folding, rotatable	horizontal	30 mm	unvarnished grey plastic coated black plastic coated	S50/1 S80/1 S120/1 SZ80/1 analog analog+digital
HKF	120 mm [4.72"] 160 mm [6.3"]	ball, fixed ball, rotatable cylinder, rotatable folding, rotatable	horizontal vertical	20 mm	grey plastic coated black plastic coated	built-in analog
HKS	180 mm [7.09"]		horizontal	30 mm	unvarnished grey plastic coated	S80/1 SZ80/1 analog analog+digital
HR	65 mm [2.56"] 108 mm [4.25"]		horizontal	20 mm	unvarnished naturally anodized black anodized	S50/1 S80/1 SZ80/1 analog analog+digital
HR5	56 mm [2.2"]		horizontal	12 mm	unvarnished black anodized plastic-reinforced	built-in analog
HS/HSL	80 mm [3.15"] 100 mm [3.94"] 120 mm [4.72"] 140 mm [5.51"] 160 mm [6.3"] 180 mm [7.09"]	ball, fixed ball, rotatable cylinder, rotatable folding, rotatable	horizontal	45 mm	unvarnished grey plastic coated	S50/1 S80/1 S120/1 SZ80/1 analog analog+digital
HST	75 mm [2.95"] 78 mm [3.07"] 110 mm [4.33"]		horizontal	20 mm	unvarnished black plastic coated	S50/1 S80/1 SZ80/1 analog analog+digital
KHB	87 mm [3.43"] 130 mm [5.12"] 150 mm [5.91"] 200 mm [7.87"]	ball, fixed ball, rotatable cylinder, rotatable folding, rotatable	horizontal	30 mm	black plastic	S50/1 S80/1 S120/1 SZ80/1 analog analog+digital
RSO/HSO16	100 mm [3.94"] 160 mm [6.3"]	ball, fixed ball, rotatable cylinder, rotatable folding, rotatable	horizontal	45 mm	grey plastic coated	SO100 analog