Jakemy 8139 47-in-1 Precision Screwdriver Tool Kit CR-V Bits Magnetic Non-Slip Handle

Precision Bit Set for Electronics Repair

The Jakemy 8139 tool kit packs 47 pieces into a moulded ABS case measuring 20.3 x 16 x 5.6 cm. Chrome-vanadium bits cover Torx, hex, slotted, cross, tri-wing, triangle, pentalobe and U-shaped fasteners. A magnetic bit holder and a 60 mm extension bar reach recessed screws inside phone and laptop housings.

Bits are machined from CR-V steel at H4 x 28 mm and carry bright chrome plating. The tip profiles include Torx T3 through T20, hex H1.3 through H5.0, slotted 1.5 through 3.5 mm, cross 1.0 through 3.5 mm, pentalobe 0.8 and 1.2, tri-wing Y2.0, triangle 2.0 and U2.6. Each bit seats into the handle with a magnetic collar that holds small screws during removal.

The handle combines PP and TPR overmoulding, which gives a non-slip grip without adding bulk. A metal spudger, curved-tip tweezers, a roller opening tool and a SIM pin handle prying and disassembly work. The case weighs roughly 725 g loaded and uses a twin-latch closure, so the lid stays shut in a technician bag.

Key Features

• 47-Piece Bit and Driver Set
  The kit supplies 31 driver bits plus a handle, extension bar and prying tools for phone, tablet and PC servicing.

• Chrome-Vanadium Steel Bits
  CR-V alloy holds the machined tip profile through repeated torque cycles on tight factory screws.

• Magnetic Bit Retention

  • A magnetic collar grips screws during insertion and removal
  • The 60 mm extension bar reaches screws set deep in a chassis
  • Bits swap without tools or a separate adapter

• Pentalobe and Tri-Wing Profiles
  The set includes 0.8 and 1.2 pentalobe plus Y2.0 tri-wing bits for Apple and Nintendo hardware.

• PP and TPR Handle
  The dual-material grip resists slipping when fingers are dry or lightly oiled.

• ABS Storage Case
  Moulded recesses hold every piece in a fixed position, and the twin-latch lid keeps contents secure in transit.

Specifications

What’s in the Box

• 47-piece precision driver set in ABS case

• Magnetic bit handle

• H4 x 60 mm extension bar

• Metal spudger, curved-tip tweezers, roller opening tool and SIM pin

Why Choose the JM-8139

• One case replaces a drawer of loose drivers for bench technicians handling mixed device brands.

• Pentalobe and tri-wing tips cover Apple and Nintendo fasteners that standard precision sets omit.

• The magnetic collar and extension bar cut the time spent fishing dropped screws out of a chassis.

• CR-V steel retains tip geometry better than soft carbon-steel bits on high-torque screws.

• A 20.3 cm case fits a laptop bag side pocket without displacing other tools.

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