Genius Tools Triple Square Bit M8 Size 5/16 Inch Hex Shank 88mm Length High Strength Steel Drive - 8508
- Genius Tools 8508 M8 triple square bit for matching M8 triple square fasteners with a 5/16 inch hex shank drive configuration.
- 88mm (3.46 inch) overall length provides added reach to access fasteners while helping maintain control during use.
- High Strength Steel construction identifies the bit material for customers selecting the correct tool grade and configuration.
- Heat-treated design provides a tough exterior and stronger inner core for reliable use in heavy-use fastening applications.
- Stamped size markings make the M8 bit easier to identify quickly and keep organized with similar hex shank bits.
Also Available in Other Sizes (62) Same tool, different size Show all 62 sizes Hide sizes
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Size M4 · Shank 1/4" · Length 30mm
$1.56
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Size M4 · Shank 1/4" · Length 56mm
$3.12
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Size M4 · Shank 1/4" · Length 88mm
$6.77
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Size M4 · Shank 1/4" · Length 125mm
$7.78
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Size M4 · Shank 1/4" · Length 160mm
$8.60
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Size M4 · Shank 1/4" · Length 200mm
$11.72
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Size M5 · Shank 1/4" · Length 30mm
$1.56
-
Size M5 · Shank 1/4" · Length 56mm
$3.12
-
Size M5 · Shank 1/4" · Length 88mm
$6.77
-
Size M5 · Shank 1/4" · Length 125mm
$7.78
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Size M5 · Shank 1/4" · Length 160mm
$8.60
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Size M5 · Shank 1/4" · Length 200mm
$11.72
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Size M5 · Shank 10mm · Length 30mm
Special Price $1.41 Regular Price $4.15
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Size M5 · Shank 10mm · Length 75mm
Special Price $2.11 Regular Price $9.96
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Size M6 · Shank 1/4" · Length 30mm
$1.56
-
Size M6 · Shank 1/4" · Length 56mm
$3.12
-
Size M6 · Shank 1/4" · Length 88mm
$5.89
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Size M6 · Shank 1/4" · Length 125mm
$7.78
-
Size M6 · Shank 1/4" · Length 160mm
$8.60
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Size M6 · Shank 1/4" · Length 200mm
$11.72
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Size M6 · Shank 10mm · Length 30mm
Special Price $1.30 Regular Price $4.15
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Size M6 · Shank 10mm · Length 75mm
Special Price $2.24 Regular Price $9.96
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Size M8 · Shank 5/16" · Length 30mm
$2.65
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Size M8 · Shank 5/16" · Length 56mm
$3.89
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Size M8 · Shank 5/16" · Length 125mm
$9.68
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Size M8 · Shank 5/16" · Length 160mm
$12.09
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Size M8 · Shank 5/16" · Length 200mm
$14.52
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Size M8 · Shank 10mm · Length 30mm
Special Price $1.41 Regular Price $4.15
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Size M8 · Shank 10mm · Length 75mm
Special Price $2.24 Regular Price $9.96
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Size M10 · Shank 10mm · Length 30mm
$3.62
-
Size M10 · Shank 10mm · Length 56mm
$5.33
-
Size M10 · Shank 10mm · Length 75mm
Special Price $2.13 Regular Price $9.96
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Size M10 · Shank 10mm · Length 88mm
$9.68
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Size M10 · Shank 10mm · Length 125mm
$16.70
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Size M10 · Shank 10mm · Length 160mm
$19.49
-
Size M10 · Shank 10mm · Length 200mm
$22.28
-
Size M12 · Shank 10mm · Length 30mm
Special Price $2.07 Regular Price $4.15
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Size M12 · Shank 10mm · Length 75mm
Special Price $2.91 Regular Price $9.96
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Size M12 · Shank 12mm · Length 30mm
$5.44
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Size M12 · Shank 12mm · Length 56mm
$7.78
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Size M12 · Shank 12mm · Length 88mm
$15.04
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Size M12 · Shank 12mm · Length 125mm
$18.15
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Size M12 · Shank 12mm · Length 160mm
$21.30
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Size M12 · Shank 12mm · Length 200mm
$24.21
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Size M14 · Shank 14mm · Length 30mm
$6.67
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Size M14 · Shank 14mm · Length 56mm
$8.22
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Size M14 · Shank 14mm · Length 88mm
$16.46
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Size M14 · Shank 14mm · Length 125mm
$25.04
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Size M14 · Shank 14mm · Length 160mm
$29.20
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Size M14 · Shank 14mm · Length 200mm
$33.41
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Size M16 · Shank 16mm · Length 36mm
$9.72
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Size M16 · Shank 16mm · Length 56mm
$9.90
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Size M16 · Shank 16mm · Length 88mm
$18.63
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Size M16 · Shank 16mm · Length 125mm
$29.20
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Size M16 · Shank 16mm · Length 160mm
$34.23
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Size M16 · Shank 16mm · Length 200mm
$33.88
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Size M18 · Shank 19mm · Length 36mm
$12.51
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Size M18 · Shank 19mm · Length 56mm
$13.36
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Size M18 · Shank 19mm · Length 88mm
$21.30
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Size M18 · Shank 19mm · Length 125mm
$33.41
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Size M18 · Shank 19mm · Length 160mm
$38.96
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Size M18 · Shank 19mm · Length 200mm
$44.53
Also Available in These Sets (3) This item is included in each set below Show all 3 sets Hide sets
Genius Tools Triple Square Bit M8 Size 5/16 Inch Hex Shank 88mm Length High Strength Steel Drive - 8508 Professional Screwdriver Bit
This professional-grade screwdriver bit pairs an M8 triple square tip with a 5/16 inch hex shank for secure fitment and efficient torque transfer. With an 88mm (3.46 inch) overall length, it’s built to provide added reach while staying stable under demanding hand-tool and driver use.
Made from High Speed Steel, the bit is designed for high strength, durability, and anti-corrosive performance. Sizes are stamped directly on the bit for quick identification and long-term tool organization.
Key Benefits
- M8 triple square bit with 5/16 inch hex shank for reliable engagement.
- 88mm (3.46 inch) overall length improves access without sacrificing control.
- High Speed Steel construction supports high strength and long service life.
- Heat-treated design creates a tough exterior with a stronger inner core.
- Anti-corrosive properties help maintain performance in demanding shop conditions.
- Stamped size markings provide fast identification and better tool organization.
- Meets or exceeds ANSI standards for consistent quality and performance.
Designed and made for professional technicians, this bit is built to perform over a lifetime of heavy use. It is backed by the Genius Tools Limited Lifetime Warranty against manufacturer defects, helping ensure dependable, repeatable results whenever a triple square drive is required.
| Brand | Genius Tools |
|---|---|
| Material | High Speed Tool Steel |
| Size | M8 |
| Drive Size | 5/16" Hex Shank |
| Length | 88mm |
| Type | Triple Square Screwdriver Bits |