VALYRIANTOOL 5PCS 3/16" M35 Cobalt Left Hand Drill Bits Set for Removing Broken Stubs, Bolts and Screws, Reverse Twist Drill Bits

Key features

• High Quality: M35 Cobalt steel precision ground drill bits for extra durability and long lifetime
• Stubby Sizes: Drill bits measure only 2-7/8 inch in overall length with 1-1/2 inch cutting flute, allowing access to hard-to-reach and tight spaces
• Efficient Design: 135 degree split point two-blades special drill tip for perfect self-centering and fast drilling
• Application: Used for removing damaged bolts, stubs and screws, or drilling a pilot hole for a screw
• Multi-Purpose Use: Suitable for drilling stainless steel, Aluminum and other hard metals

VALYRIANTOOL COBALT STUBBY LEFT HAND DRILL BIT Instructions: 1. Grind or flattern the head of damaged bolt or screw. 2. Use a heavy hammer and center punch to make the centre of bolt or screw. 3. Drill into the bolt or screw in reverse using a left hand drill bit with lightweight oil. 4. Most bolts or screws come out before the hole drilling operation is finished. 5. The hole drilled will form a pilot hole for a screw extractor if the bolt or screw isn't removed out.

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