No.75B Taper Point Bit (Hex Shank)

Makes pre-holes for nail or screw to prevent breaking the wood


  • Making pre-holes, to prevent break the wood when hitting nails and tightening screws.
  • Tapered and single flute bit style features good bites to the woods and smooth wood chip ejection.


Usage Wood
Fiber Cement
Particle Board
Recommended tool(s) Quick Change Impact Driver
Electric Power Drill
RPm Range Less than 3,000 rpm
Material(s) High Carbon Steel
Markings markings


  • taper point bit size

  • Size:D
  • Overall Length:L
  • Spiral Length:SL
  • Shank Shape:d
  •  Unit:mm


Product No. Size Overall Length Spiral Length Shank Shape Qty (Inner Box)
75B-030 3 110 45 6.35 12
75B-040 4 125 60 6.35
75B-050 5 135 70 6.35
75B-060 6


Product No. Set Description Qty (Inner Box)
75B-SA A Set 3, 4, 5mm (1pc) 12
75B-SB B Set 4, 5, 6mm (1pc)
75B-S030 3mm Set 3mm (3pcs)
75B-S040 4mm Set 4mm (4pcs)

Bits of knowledge

  • Custom Auger bits can be made to order. (Form)


  1. 1. How deep should the pre-hole will be?
    Make a pre-hole of 2/3 to half the length of the screw.
  2. 2. Which part of the taper point bit is indicated as size 3mm?
    The size 3mm is indicated at the most biggest diameter of the taper point bits.
  3. 3. What is size to match the screw?
    Refer to the below guideline.
    Taper Point Bit size Applicable screw sizes
    3mm 2.1〜2.7mm
    4mm 3.1〜4.5mm
    5mm 5.1〜5.8mm
    6mm 6.1〜6.5mm