(DB051)5pc Forstner Hinge Boring Drill Bit Set 15 for 35mm

Features:

• 100% brand new and high quality
  Borer Drill Diameter:15-35mm
  Precision ground for heavy use and easily resharpened, they can enlarge existing holes with ease and can bore any arc of a circle.
  Carbide tip is specially designed to through hole cleanly in end grain and thin stock, great for boring concealed hinges and door clocks.
  It is far safer and more accurate to use this drill bit in a drill press.

Specification:

• Suitable for: Wood
  Borer Drill Diameter: 15-35mm
  Material type: Carbide
  Shanks size:(15 20 25 30mm shank size 35 shank size 10mm)

Package Includes:

• 1 x 15mm Forstner Auger Drill Bit
  1 x 20mm Forstner Auger Drill Bit
  1 x 25mm Forstner Auger Drill Bit
  1 x 30mm Forstner Auger Drill Bit
  1 x 35mm Forstner Auger Drill Bit
  (Packed Safely in Bubble Bag.)
• 
  

  Common machine speed
  Trimming machine	10000-30000 rpm	electric router	First gear 9000 rpm 2nd gear 12000 rpm 15000 rpm in 3rd gear 19000 rpm in 4th gear 5th gear 23000 rpm
  Vertical washing machine	Low speed range 12000 rpm High speed 24000 rpm	Automatic engraving machine	Variable frequency up to 18000 rpm
  Diameter or cutting height MM	Maximum speed/minute	Maximum feed speed MM/min
  Below 25	24000	5000
  25.1-35	18000	4000
  35.1–50	16000	3500
  50.1-60	14000	3000
  60.1—80	12000	2500
  Above 80	10000	2000