9.5mm 38"Twist Step Drill Bit Slant Hole Positioning Wrech 14"

Specifications:
Material:steel
Size:15.7x2.5cm(1/4")
Diameter:4.5mm

Features:
·Good abrasion resistance, long service life
· fast, giving a wrench
·Sharp head, smooth without burr

How to use:
1.adjust the height of the drill bit.
2.Clip board which you want to drill.
3. the drill into the hole in the wood.
4. drill up 5 mm (remember not against the wood to drill).
5. start the drill reaches a certain speed above 500 rpm,
1500 rpm is the best.
6. advanced to slow down, such as front-end fine drill in
half or full, then can speed up.

Package include:
1xTwist step drill bits
1xwrench
1x9.5mm(3/8")stop collar







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