80-piece Drill Set

This drill bit sets features HSS Drills, Hex Key Wrench and Drill Gauge.

key specifications include:

* 50 25mm bits
* One drill gauge
* Four hex key wrenches
* Five hole saws
* One counter sink
* Five wood drills
* Two magnetic bits holders
* 19 HSS drills
* Nine nut drivers
* Four wood flat drills
* 12 50mm bits
* Five masonry drills
* One counter sink

source: http://lebow.manufacturer.globalsources.com/si/6008802760127/pdtl/Drill-bit/1003461999/80-piece-Drill-Set.htm

Diamond Drill Bit Guide

This is a diamond drill bit guide for drilling with diamond coated hole saws~drill bits. Allows you precise hole placement for drilling with a diamond drill bit. This takes the fear out of drilling glass/granite/tile and other material. This holds the drill bit securely with 4 barrings. It’s adjustable to 83mm/3-1/4.

source: http://www.youtube.com/watch?v=pzYwz7EPAwo

httpv://www.youtube.com/watch?v=pzYwz7EPAwo

Guide for Using Diamond Drill Bits

In this video, the expert shows us a guide for drilling with diamond coated hole saws~drill bits. This drilling guide will help you perform a precise hole placement when doing this kind of drilling guide.

This is a diamond drill bit guide for drilling with diamond coated hole saws~drill bits. Allows you precise hole placement for drilling with a diamond drill bit. This takes the fear out of drilling glass/granite/tile and other material. This holds the drill bit securely with 4 barrings. It’s adjustable to 83mm/3-1/4″

source: http://www.youtube.com/watch?v=pzYwz7EPAwo

httpv://www.youtube.com/watch?v=pzYwz7EPAwo