Steel Masonary
What is a pilot drill bit? Is it different from an ordinary drill bit?
Am I safe to use a 4mm normal masonary drill bit as a pilot, or do I need something different?
I’ve got some screws which can go straight in to masonary/brick walls – which suits me cause I usually have nig trouble trying to fit plugs in to walls.
quote: “No need for a plug or anchor sleeve! Just drill through the part being fixed to the masonry, then drive the screw in. Dual angle thread with hi-lo threadform. Extra hard steel with chromate finish.”
but…..
quote: “Use 4mm pilot for 4.8mm screws and 5mm drill for 6.4mm screws.”
***Am I safe to use a 4mm normal masonary drill bit as a pilot for my 4.8mm special masonary screws, or do I need something different ? I don’t want to leave a big nasty hole in the wall from using the wrong sort of drill bit. Thanks.***
I have used these masonary screws, but in much larger sizes. From your quote, you MUST use a 4mm masonary drill, its not a pilot hole for a larger drill size, but a pilot hole to put the bolt into. The 0.8mm difference is for the hardened thread to cut into for a grip, i.e. 0.4mm all round. If you make the hole any bigger than 4.0mm the screw will just slide in!
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New Hanson Industrial Quality 5/16″ Masonary Steel Drill Bit #50120 $3.50 |
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New Hanson 1/4″ Masonary Carbide Steel Drill Bit #50316 $3.50 |
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New Hanson 3/16″ Masonary Carbide Steel Drill Bit #50312 $3.50 |
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TUNGSTEN 4MM WOOD MASONARY PLASTIC STEEL DRILL BIT $3.59 |
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LOT OF ~30~ GERMANY CARBIDE STEEL MASONARY ROTARY DRILL BITS CONCRETE 1/2″ 3/8″ $4.99 |
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~30~ GERMANY CARBIDE STEEL MASONARY BITS CONCRETE 3size $4.99 |
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~30~ GERMANY CARBIDE STEEL MASONARY BITS CONCRETE 3size $7.99 |
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5X REMGRIT CARBIDE JIGSAW JIG SAW BLADE TILE METAL CONCRETE STEEL MASONARY BRICK $9.95 |
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Professional Steel Brick Masonary Hammer 1-1/2 LB 24oz $13.75 |
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Metalbestos Stainless Steel Chimney Cap for Masonary $14.25 |
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STAINLESS STEEL MASONARY CHIMNEY CAPS $20.00 |
