Drill Bit Sharpener 3-20mm,110V Portable Drill Bit Grinder with 18 Collets,Adjustable Point Angle 95°-135° & Lip Relief Angle,CBN Wheel for HSS,Workshop Home Garage

ParameterModel:MR-20GGrinding Range:Φ3mm - Φ20mm (1/8" - 25/32")Point Angle:95° (100°) - 135°Power:110V,60HzMotor:120WSpeed:4400rpmGrinding Wheel:CBN (For HSS)Weight:22lbs (10kg)

• [Precision Positioning]:Features a high-definition calibrated scale and rotary positioning mechanism for evenly sharpened edges and perfectly centered drill bits – no wandering,no center drill needed.Equipped with a CBN grinding wheel at stable 4400 RPM for consistent high-precision sharpening
• [Adjustable Point Angle & Relief Angle]:Customizable point angle from 95° (100°) to 135° and adjustable lip relief angle (rear clearance angle).Restore old bits to like-new condition,optimize performance for different materials, and significantly reduce replacement costs
• [Easy to Use – No Skill Required]:Sharpens rake angle,point angle,and relief angle.Also thins the web to create a self-centering point for precise positioning.Compact and lightweight – use it anywhere from home DIY to auto repair shops
• [High Durability]:Equipped with a 120W pure copper DC motor and durable CBN grinding wheel (for HSS bits).Provides fast material removal,efficient heat dissipation,and prevents drill bit overheating to maintain temper hardness
• [Universal Compatibility]:Comes with 11 ER20 collets for Φ3–13mm and 7 ER25 collets for Φ14–20mm.Also produces 4 different relief angle widths as needed – one machine covers nearly all your drill bit maintenance needs