Tay cầm khóa hex tham số

Changes:

• 9/6/2023: widened keyhole, lengthened handle, countersunk m3 bolt

based on https://www.printables.com/model/62086-allen-hex-key-handle

Included 3mf has handles for sizes 1.5mm, 2mm, 2.5mm, 3mm, 4mm

each line on bottom of handle indicates .5mm so 1.5mm handle has 3 lines, 4mm handle has 8, etc.

Onshape link: https://cad.onshape.com/documents/cb2e9d0d62129a2eed2a8587/w/fff0df3df51ef0aeceff03fc/e/9c043c8634e9c2d81f24865a?configuration=List_dkD6Fpr5RO8RQm%3DDefault&renderMode=0&rightPanel=configPanel&uiState=64f77c05a5a1795b482057e7

parameters:

1. size: hex key size measured flat to flat
2. sheath: length of plastic surrounding hex key. set this lower for shorter hex keys. default 20mm
3. length: top to bottom length of handle