Product Review

Features:

✔Provide 13 kinds of size Alloy Hole Saws, meet different needs.
✔Chip removal, with excellent performance, sharp edge, wear-resistant.
✔The stainless steel plate, steel, casting, Aluminum Alloy, iron and other kinds of metal plate drilling.
✔Each edge is a part of the characteristics of the cutting work, making the hole is not easy to produce the phenomenon of collapse.
✔Perfect for the installation of locks, knobs for doors and cabinets or drilling holes larger than the diameter through desk etc..

Specification

Material: Tungsten steel Hole Saws.
Size: 16mm, 18mm, 20mm, 22mm, 25mm,26mm,28mm, 30mm, 35mm, 40mm,45mm, 50mm, 53mm.

Package Includes:

13 x Tungsten steel Hole Saws

How to use

1.When use this item , the cutting material must be fixed,it can not be moved, it should be vertical to 90 degree to the drill bit.
2.When the central drill bit drill throught the borad, please wait for a little while, then drill the hole slowly.
3.When drilling the hole, if you feel the drill bit is abnormal or the waste chip remove is not ideal ,please stop drilling. remove the chip then continue to drill the hole.

Important Note:

When you using this drill bit, the materials (eg. Stainless Steel, Sheet Metal, Cast Iron,Aluminum, Copper, Brass ect.) temperature will get very high,
please add some water or coolant to avoid the material get smoke.