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Feature

material:brass
shaft diameter is 3.17mm
high coaxiality,convenient to loading and uploading operation
3.17mm drill bit suitable for 545 motor, 550 motor, 555 motor 3.17MM shaft motor
holding a small drill bit,and after connect with the motor can of for PCB circuit board drilling special mini electric drill

Description

You'd better use a screw to make clamping force better.
Material:Brass
Color:Golden
(1)Single Drill diameter range: 0.7-1.2mm
Model: 3.17-1.2mm
Shaft diameter: 3.17mm
Dimension:26 x 8mm/1.02 x 0.31""(L x Dia)
Weight:37g

(2)Single Drill diameter range: 0.8-1.5mm
Model: 3.17-1.5mm
Shaft diameter: 3.17mm
Dimension:26 x 8mm/1.02 x 0.31""(L x Dia)
Weight:36g

(3)Single Drill diameter range: 1.3-2mm
Model: 3.17-2mm
Shaft diameter: 3.17mm
Dimension:26 x 8mm/1.02 x 0.31""(L x Dia)
Weight:37g

(4)Single Drill diameter range: 2-2.5mm
Model: 3.17-2.5mm
Shaft diameter: 3.17mm
Dimension:26 x 8mm/1.02 x 0.31""(L x Dia)
Weight:36g

(5)Single Drill diameter range: 2.5-3.2mm
Model: 3.17-3.17mm
Shaft diameter: 3.17mm
Dimension:26 x 8mm/1.02 x 0.31""(L x Dia)
Weight:36g

Package Include:
5 x Electric Motor Shaft Drill Clamp
5 x Drill Clamp Cap
5 x Screws
2 x Wrench