3pcs HSS TitaniumCoated Step Cone Drill Bit Set Quick-Change 1/4" Shank

3pcs?HSS?Spiral?Grooved?Step?Drill?Bit?

Features?:

High?speed?steel,durable.

Widely?used?to?cut?holes?in?a?variety?of?material?like?steel,?wood,?thin?iron,?aluminum?alloy,?insulation?boards,?PVC ?sheet,ect

Specification?:

Material?:?High?Speed?Steel

: Gold

Shank:Triangle round handle

Scop?:?thin?iron?plate,aluminum,insulation?panels,PVC?panels?4mm?thickness?within?the?timber.

Type:

1/4-3/4(1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16,3/4),Shank:25 x 7mm

3/16-1/2(3/16, 1/4, 5/16, 3/8,7/16, 1/2),Shank:25 x 7mm

1/8-1/2(1/8, 5/32, 7/32, 1/4, 9/32, 5/18, 11/32, 3/8, 13/32, 7/18, 15/32, 1/2), Shank:25 x 7mm

Package?included?:

1x1/4-3/4Spiral Grooved Drill

1x3/16-1/2Spiral Grooved Drill

1x1/8-1/2Spiral Grooved Drill

1 x Package bag

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