Torx screwdriver bit set 4-970

for six-lobe screwssquare recessPhillips

Bit set with torque adapters and a comprehensive C4 bit set for precise low-torque applications. The kit converts a 4 mm C4 bit and holder into a torque-limited tool and is supplied in a plastic case with foam insert.

Area of application
Turn your 4 mm C4 bit and a holder into a precise torque tool. These small torque values are preset in the adapter and can be clamped between any standard holding tool and a bit. The audible click indicates when the preset torque is reached. The adapter cannot be overtightened. When loosening the screw there is no torque unlocking (due to the blocked core shaft), so no additional unlocking tool is required (approx. 30% higher torque when loosening). The adapter is primarily designed for manual operation. In combination with power tools a maximum speed of 100 rpm with minimum click repetition is recommended.

Technical description
The adapters are tested according to DIN EN ISO 6789 (manually operated torque screwdriving tools) and achieve a tolerance of ±10% for at least 20,000 clicks. The torque value should be checked regularly by the user with a torque meter. The adapter functions by locking the ratchet in the bushing sleeve. The patented system consists of a hollow core shaft and a damping cylinder; when the applied torque exceeds the preset value the core shaft becomes inactive so continuous torque on the screw no longer increases.

General information
Torque adapters are frequently used as a complete solution for work on electronic equipment, in quick-change systems, robotic workstations, aerospace, medical environments or any bench where accurate low torque is required.

Content

• 4-971 torque adapter 0.1 Nm for 4 mm bits
• 4-972 torque adapter 0.2 Nm for 4 mm bits
• 4-973 torque adapter 0.3 Nm for 4 mm bits
• 4-974 torque adapter 0.4 Nm for 4 mm bits
• 4-975 torque adapter 0.5 Nm for 4 mm bits
• 4-976 torque adapter 0.6 Nm for 4 mm bits
• 6-340-3 C4 Bit set 42 pcs, consisting of:
  • Slot 1.0-1.5-2.0-2.5-3.0
  • Cross-recess PH000-PH00-PH0-PH1
  • Torx T3-T4-T5-T6-T7-T8-T9-T10-T15
  • Hex 0.9-1.3-1.5-2.0-2.5-3.0
  • Wrench 2.5-3.0-3.5-4.0-4.5-5.0
  • Triangle 1.6-2.0-2.2-2.3
  • Square S0-S1
  • Pentalobe P2-P5-P6
  • SIM-Eject
  • Tri-Point 0-1
• 6-340-2 bit extension for 4 mm (5/32 inch) hex bits
• 6-340-1 ESD bit holder dissipative for 4 mm (5/32 inch) hex bits
• 4-564 bit adapter 1/4 to 4 mm bits, length 42.5 mm

Characteristics / technical specifications

• Product code / designation: 4-970
• Number of pieces: 51 pcs (6 torque adapters + 42-piece C4 bit set + accessories)
• Torque range (adapters): 0.1 Nm, 0.2 Nm, 0.3 Nm, 0.4 Nm, 0.5 Nm, 0.6 Nm (preset)
• Tolerance: ±10% (factory certificate on request)
• Test / durability: Tested according to DIN EN ISO 6789; tolerance ±10% for at least 20,000 clicks
• Adapter dimensions: Ø 8 mm, length 22 mm (without shank)
• Drive / holder: Drive hex shank 4.0 mm; magnet bit holder 4.0 mm
• Extension: aluminum extension with 4 mm bit holder
• Handle: ESD-handle, dissipative (10^6 to 10^9 ohm)
• Materials: stainless steel and high-quality tool steel (adapters / bits)
• Case: Plastic case with foam insert
• Measures (case): 175 x 160 x 45 mm
• Weight (kit): 427 g
• Use with power tools: max. recommended speed 100 rpm (minimum click repetition required)