Alpha impact step tip drill bits, diameter (mm) 8.5
Available
The Alpha ONSITE Plus impact step tip drill bits come in 27 sizes from 3mm to 13mm, each supplied as a single carded bit.
The finish is black and amber. Overall length grows from 62mm on the 3mm bit to 88mm on the 7.5mm bit, and every size from 8mm to 13mm is 101mm overall with a 51mm flute length. Alpha also sells the bits in sets of 16 and 23 pieces, linked below.
Where this product is used
- Drilling holes in steel and stainless steel on site
- Drilling holes in wood and plastic
- Drilling with an impact driver or a power drill
Features
- Fully ground M2 HSS
- 135° split point cuts faster and reduces wandering
- 1/4" quick change shank, suits power drills and impact drivers
- Fast hole starting without pilot holes
- Maximum cut depth 3xD
- 27 sizes from 3mm to 13mm, each carded
Key specifications
| Specification | Detail |
|---|---|
| Brand | Alpha |
| Diameters | 3mm to 13mm |
| Material | Fully ground M2 HSS |
| Point | 135° split point |
| Maximum cut depth | 3xD |
| Shank | 1/4" quick change |
| Suits | Power drills and impact drivers |
| Supplied | Single, carded |
Choosing the right option
Choose the diameter you need. If you need a spread of sizes, the 16 piece set covers 4mm to 13mm and the 23 piece set covers 3mm to 13mm.
See also the: Alpha SM16ST ONSITE Plus Impact Step Tip Drill Set, 16 Piece, 4mm to 13mm, Alpha SM23ST ONSITE Plus Impact Step Tip Drill Set, 23 Piece, 3mm to 13mm.
| Model | Diameter | Overall length | Flute length |
|---|---|---|---|
| C9STQRM030 | 3mm | 62mm | 28mm |
| C9STQRM032 | 3.2mm | 62mm | 28mm |
| C9STQRM033 | 3.3mm | 62mm | 28mm |
| C9STQRM035 | 3.5mm | 66mm | 30mm |
| C9STQRM040 | 4mm | 70mm | 31mm |
| C9STQRM042 | 4.2mm | 70mm | 31mm |
| C9STQRM045 | 4.5mm | 73mm | 31mm |
| C9STQRM048 | 4.8mm | 73mm | 31mm |
| C9STQRM050 | 5mm | 75mm | 31mm |
| C9STQRM055 | 5.5mm | 78mm | 35mm |
| C9STQRM060 | 6mm | 80mm | 37mm |
| C9STQRM065 | 6.5mm | 81mm | 38mm |
| C9STQRM068 | 6.8mm | 83mm | 39mm |
| C9STQRM070 | 7mm | 83mm | 39mm |
| C9STQRM075 | 7.5mm | 88mm | 43mm |
| C9STQRM080 | 8mm | 101mm | 51mm |
| C9STQRM085 | 8.5mm | 101mm | 51mm |
| C9STQRM090 | 9mm | 101mm | 51mm |
| C9STQRM095 | 9.5mm | 101mm | 51mm |
| C9STQRM100 | 10mm | 101mm | 51mm |
| C9STQRM102 | 10.2mm | 101mm | 51mm |
| C9STQRM105 | 10.5mm | 101mm | 51mm |
| C9STQRM110 | 11mm | 101mm | 51mm |
| C9STQRM115 | 11.5mm | 101mm | 51mm |
| C9STQRM120 | 12mm | 101mm | 51mm |
| C9STQRM125 | 12.5mm | 101mm | 51mm |
| C9STQRM130 | 13mm | 101mm | 51mm |
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Alpha ONSITE Plus Impact Step Tip Drill Bits, 1/4" Quick Change, 3mm to 13mm: 8.5
SKU: A0181627 | Model: C9STQRM085
Alpha C9STQRM085: 8.5mm ONSITE Plus impact step tip drill bit, fully ground M2 HSS. 101mm overall length, 51mm flute length.