PRODUCT INFO

No.7M Impact Bit "Middle Type "

Pass Completely through to the other side

Features

  • Burr-free lead screw for quick, on-target stars & smooth cutting.
  • Energy saving 20% Up by special lead screw and cutting edge.

Specifications

Usage Wood
Recommended tool(s) Quick Change Impact Driver
Electric Power Drill
Cordless drill
RPm Range Less than 3,000 rpm
Material(s) High Carbon Steel
Re-Sharpen Yes(How to re-sharpen)
Markings

Sizes

  • impact bit middle size

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

Product No. Size Over Length Spiral Length Shank Shape Qty (Inner Box)
7M-030 3 110 60 6.35 6
7M-035 3.5 120 70 6.35 6
7M-040 4
7M-045 4.5 140 90 6.35 6
7M-050 5
7M-055 5.5 160 100 6.35 6
7M-060 6
7M-065 6.5 170 100 6.35 6
7M-070 7
7M-075 7.5
7M-080 8
7M-085 8.5 180 110  6.35  6
7M-090 9
7M-095 9.5 190 120 6.35 6
7M-100 10
7M-105 10.5
7M-110 11
7M-115 11.5
7M-120 12
7M-125 12.5
7M-130 13
7M-135 13.5 200 130 6.35 6
7M-140 14
7M-145 14.5
7M-150 15
7M-155 15.5
7M-160 16
7M-165 16.5
7M-170 17
7M-180 18
7M-190 19
7M-200 20 205 135 6.35 6
7M-210 21
7M-220 22
7M-230 23
7M-240 24
7M-250 25

Bits of knowledge

  • When certain boring depths are needed, a Drill Stopper can be used.
  • When boring deep holes, lift the drill bit periodically.
  • Custom Auger bits can be made to order. (Form)

Help

Leaflet

  • leaflet

How to re-sharpen?

Sharpening the cutting edge
Sharpening the cutting edge Sharpening the cutting edge
1. Hold the bit as shown at approximately a 45-degree angle. Place the file at near-horizontal position, making sure it is flush with the cutting edge.  2. Touch the left edge of the file to the bit's spine, which will be used as a guide. File forward repeatedly only. Do not file in reverse.
Sharpening the spur
Sharpening the spur Sharpening the spur
1. If the spur has any burrs, lightly file them to create a clean edge. 2. Hold the bit so the side of the spur is facing up. Place the file flush with the spur. File with a smooth forward motion.

Associated Product

  • combination auger bit
  • drill stopper
  • corner strong
  • COBRA

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