Does this work by pumping the handle up and down or actual twisting like you would a manual screwdriver?

Twist with fingers , not pump. Easy to use.

Would the bits work on pewter models?

I seriously doubt these would work on pewter, at least the smaller bits. I have already seen 2-3 of these smaller bits break with very little use drilling into styrene plastic.

Manufacturer	Augenweide
Part Number	AU0022020
Item Weight	12 ounces
Package Dimensions	5.2 x 2.6 x 2.1 inches
Country of Origin	China
Item model number	AU0022020
Color	Black
Style	Adjustable
Material	Metal
Item Package Quantity	1
Included Components	48 pieces of micro twist drill bits (0.5-3.0mm), 2 pack keychain ring with screw eye pins, 1 piece pin vise hand drill, 10 pieces of PCB mini drill bits (0.3-1.2mm), 1 piece bench vise
Batteries Included?	No
Batteries Required?	No

62 Pieces Pin Vises Hand Drill Bits Set Micro Twist Manual Rotary Hobby Drill Tools with Clamp for Jewelry Making, Craft Carving, DIY, Woodworking, Plastic, Shells, Resin or Model Making (0.3-3.0mm)

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Preguntas comunes