4pcs 0.5mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Switch Guard 2pcs x Spinning Bike Pull

2pcs x Spinning Bike Pull Pin Spring Knob

Pre-mounted smooth black sponge tires

good for protecting the handle

Thread Length (approx) : 14mm / 0

4pcs 0.5mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Switch Guard 2pcs x Spinning Bike PullThe solid carbide drill bit is made of a micro grain tungsten cobalt alloy with an average cobalt content of 6%. It has high hardness (HRC92), wear resistance, heat resistance, high bending strength, and resistance to stick. Provides faster cutting speeds than other substrates and is harder but more brittle. Large and spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. With good milling