$12 Diamond Drill Bit Set, 11PCS Hollow Core Drill Hole Saw Set with Tools Home Improvement Power Hand Tools Power Tool Parts Accessories sharpvalley.com,with,Saw,Hole,Core,Tools Home Improvement , Power Hand Tools , Power Tool Parts Accessories,Drill,Diamond,Bit,11PCS,Drill,Set,$12,Hollow,Set,,/exuviate872557.html sharpvalley.com,with,Saw,Hole,Core,Tools Home Improvement , Power Hand Tools , Power Tool Parts Accessories,Drill,Diamond,Bit,11PCS,Drill,Set,$12,Hollow,Set,,/exuviate872557.html Diamond Drill Choice Bit Set 11PCS Core Hollow Hole with Saw Diamond Drill Choice Bit Set 11PCS Core Hollow Hole with Saw $12 Diamond Drill Bit Set, 11PCS Hollow Core Drill Hole Saw Set with Tools Home Improvement Power Hand Tools Power Tool Parts Accessories

Diamond Drill Choice Bit Set 11PCS Core Superior Hollow Hole with Saw

Diamond Drill Bit Set, 11PCS Hollow Core Drill Hole Saw Set with

$12

Diamond Drill Bit Set, 11PCS Hollow Core Drill Hole Saw Set with

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Product description

Two Fixing Modes Available
Mode 1, Adjustable Plate Obverse Side: You can fix your hole saw with 4 bearing balls,for sizes up to 3-1/4 inches
Mode 2, Adjustable Plate Reverse Side: Place the plate reversely then remove one bearing ball to the bearing hole, you can fix your hole saw with 3 bearing balls,for sizes up to 1-3/4 inches


Tip: How to keep the drill bit on target
(1) You can start drilling at an angle, with the edge of the drill bit making a C slot and then getting the drill bit up to vertical.
(2) You can manually guide the drill bit with wet sponge
(3) You can make your own guide out of plywood - plastic or even a card board. All you need is to keep the drill bit in place until it makes the initial marks.


Tip: How to drill correctly:
1.Firstly, mark the point where you want to drill the hole;
2.Next, fix the drill at the angle of 45°to make a drilling trace at a high rotating speed;and add water during the drilling process;
3.Then drill vertically from the other side of the drilling trace at a slow speed to prevent breakthrough.


Tip: How to keep the tool cool
a- You can build a mini water dam around the hole with plumbers putty.
b- You can choose to spray water on the drill bit.
c- You can use running water to cool the drill bit.


Tips:
1. Not suitable for concrete or concrete deeper than 1/2 inch.
2. If you smell a burning odor, step back! Too fast or stressed.
3. Water should be used as a lubricant and coolant when drilling, which will greatly extend the service life of the drill.


Package includes
10PC diamond drill
1PC adjustable hole saw guide fixture
1PC screwdriver
1 instruction manual.

Diamond Drill Bit Set, 11PCS Hollow Core Drill Hole Saw Set with