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ACCURATE, BURR-FREE HOLES
Patented two flute design cuts fast, clean, round holes

STARTS ON CONTACT
Split point design for faster penetration and less walking

LONG TOOL LIFE
Steam oxide coating adds durability
Enhanced flute design removes chips rapidly
3317-vari-bit-step-drill-bit
3318-vari-bit-step-drill-bit-group
Unit of Measure
1 

Part #

Units Per Package

Size Inches

Size MM

# of Hole Sizes

Shank Size Inches

Shank Size MM

List Price

L4030881VB1 N/A 1 N/A 1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2 N/A 3.2, 4.0, 4.8, 5.6, 6.4, 7.1, 7.9, 8.7, 9.5, 10.3, 11.1, 11.9, 12.7 N/A 13 N/A 1/4" N/A 6.4 $26.29
L4030882VB2 N/A 1 N/A 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 N/A 12.7, 14.3, 15.9, 17.5, 19.1, 20.6, 22.2, 23.8, 25.4 N/A 9 N/A 3/8" N/A 9.5 $45.80
L4030883VB3 N/A 1 N/A 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 N/A 6.4, 7.9, 9.5, 11.1, 12.7, 14.3, 15.9, 17.5, 19.1 N/A 9 N/A 3/8" N/A 9.5 $40.15
L4030884VB4 N/A 1 N/A 3/16, 1/4, 5/16, 3/8, 7/16, 1/2 N/A 4.8, 6.4, 7.9, 9.5, 11.1, 12.7 N/A 6 N/A 1/4" N/A 6.4 $30.58
L4030886VB6 N/A 1 N/A 3/8, 1/2 N/A 9.5, 12.7 N/A 2 N/A 1/4" N/A 6.4 $25.68
L4030887VB7 N/A 1 N/A 7/8 (for 1/2 conduit) N/A 22.2 (for 12.7 conduit) N/A 1 N/A 3/8" N/A 9.5 $45.35
L4030908VB8 N/A 1 N/A 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8 N/A 4.8, 6.4, 7.9, 9.5, 11.1, 12.7, 14.3, 15.9, 17.5, 19.1, 20.6, 22.2 N/A 12 N/A 3/8" N/A 9.5 $51.34
L4030909VB9 N/A 1 N/A 7/8, 1-1/8, 1-7/32 N/A 22.2, 28.6, 31.0 N/A 3 N/A 3/8" N/A 9.5 $54.71
L4030888VB11 N/A 1 N/A 7/8, 1-1/8 (for 1/2 and 3/4 conduit) N/A 22.2, 28.6 (for 12.7 and 19.1 conduit) N/A 2 N/A 3/8" N/A 9.5 $61.46
L4030912VB12 N/A 1 N/A 7/8, 1-1/8, 1-7/32, 1-1/4, 1-3/8 N/A 22.2, 28.6, 31.0, 31.8, 34.9 N/A 5 N/A 3/8" N/A 9.5 $70.28
L4030925VBX8 N/A 1 N/A 8" (203mm) Extension. Fits 3/8 (9.5mm) shank & larger. N/A N/A N/A 3/8" N/A 9.5 $16.55
Unit of Measure
1