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Technical Specification
PRODUCT NUMBER 4010740617408094081140817
Type Masonry Drill BitMasonry Drill BitMasonry Drill BitMasonry Drill BitMasonry Drill Bit
Length 120mm200mm150mm400mm150mm
Size 20mm200mm150mm400mm150mm
Diameter 8mm8mm12mm12mm16mm
Diameter Range Up to 10mmUp to 10mm11-25mm11-25mm11-25mm
Length Range 101-200mm101-200mm101-200mmOver 200mm101-200mm
Size Range 11-25mm101-200mm101-200mmOver 200mm101-200mm
Suitable For MasonryMasonryMasonryMasonryMasonry
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Q 1. What drill bit types and sizes are included in the Draper 18551 set?

A. The set contains 17 bits in total. Twelve are titanium nitride coated high speed steel straight shank drills in sizes 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0, 5.5, and 6.0 mm. Five are tungsten steel masonry drills in sizes 3.0, 5.0, 6.0, 8.0, and 10 mm.

Q 2. What materials are the HSS drills in this set suitable for?

A. The high speed steel drills carry a titanium nitride coating, which is applied to HSS bits intended for drilling metal and general-purpose materials. The source data confirms the coating type; always verify suitability with the specific material being drilled.

Q 3. What are the masonry drills in this set made from?

A. The five masonry drills included in the Draper 18551 set are constructed from tungsten steel, which is the material specified in the source data for these bits.

Q 4. How is the Draper 18551 drill bit set stored and presented?

A. All 17 drill bits are housed in a soft grip plastic case. The set is display packed, keeping each bit organised, protected, and ready for use or storage.

Q 5. Is this drill bit set metric?

A. Yes. All sizes in the Draper 18551 set are stated in millimetres. The HSS bits range from 1.5 mm to 6.0 mm and the masonry bits range from 3.0 mm to 10 mm.

Q 6. When will my order be dispatched?

A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.

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