Packaging Details
- Unit Type:lot (3 pieces/lot)
- Package Weight:0.15kg (0.33lb.)
- Package Size:15cm x 10cm x 5cm (5.91in x 3.94in x 1.97in)
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Measurement System | Inch |
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Number of Flutes | 2 |
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Shank Diameter | 1/4 inches |
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Shank Type | Hex |
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Brand Name | QWORK |
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Color | Gold |
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Finish Type | Titanium Coated |
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Number of Items | 3 |
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Point Type | Split point |
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Product features
1) 3 standard SAE step drill bits can drill 28 different size of holes on different thickness of materials. One 3/16-inch to 1/2-inch six-step bit, 1/4-inch to 3/4-inch nine-step bit, and 1/8-inch to 1/2-inch 13-step bit(detailed hole size and drill depth of each drill bit please check in Product description below)
2) Made of high quality high speed steel that is hard and sharp enough to drill through wood, plastic, steel and sheet metal
3) Titanium coated surface can reduce friction and overheat when drilling through material for longer life time
4) Two-flute design provides faster, smoother and accurate cutting
5) 1/4" hex shank (6.35mm)can be easily fit into power driver, drill and press drill
Product Specification
Package quantity: 3 Pcs
No.1 —— Six step bit:3/16\`\`(4.76mm), 1/4\`\`(6.35mm), 5/16\`\`(7.94mm), 3/8\`\`(10.35mm), 7/16\`\`(11.11mm), 1/2\`\`(12.7mm) drilling diameter, up to 3/8"(9,52mm) depth of each step
No.2 —— Nine step bit: 1/4\`\`(6.35mm) 5/16\`\`(7.94mm), 3/8\`\`(10.35mm), 7/16\`\`(11.11mm),1/2\`\`(12.7mm),9/16\`\`(14.28mm), 5/8\`\`(15.88mm), 11/16\`\`(17.46mm), 3/4\`\`(19.05mm) drilling diameter, up to 3/16"(4.76mm) depth of each step
No.3 —— Thirteen step bit: 1/8\`\`(3.18mm), 5/32\`\`(3.97mm), 3/16\`\`(4.76mm), 7/32\`\`(5.56mm),1/4\`\`(6.35mm),9/32\`\`(7.14mm), 5/16\`\`(7.94mm), 11/32\`\`(8.73mm), 3/8\`\`(9.53mm), 13/32\`\`(10.32mm),7/16\`\`(11.11mm),15/32\`\`(11.91mm),1/2\`\`(12.7mm) drilling diameter, up to 1/8"(3.18mm) depth of each step
Material:High Speed Steel
Shank :1/4" Hexagonal (6.35 mm)
Surface treatment: titanium coated
Tools: Power drill, driver and press drill
Package: 3 drill bits are packed in a blue durable storage bag that is easy to store and carry
User Instruction
1) Star drilling at low speed. Do not push too much. Let the drill bit to cut by itself. The harder the material it is working with, the lower speed shall be applied.
2) Inject coolant oil while working, it will dramatically increase the drilling efficiency and extend the drill bit life time
3) Drill bits are good for wood, plastic, steel and sheet metal drilling. Stainless steel is not recommended.
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